{"id":17046,"date":"2021-02-19T19:34:17","date_gmt":"2021-02-19T19:34:17","guid":{"rendered":"https:\/\/drnicollemd.com\/?p=17046"},"modified":"2021-10-21T04:37:24","modified_gmt":"2021-10-21T04:37:24","slug":"is-nutritional-yeast-healthy-for-everyone","status":"publish","type":"post","link":"https:\/\/drnicollemd.com\/2021\/02\/19\/is-nutritional-yeast-healthy-for-everyone\/","title":{"rendered":"Is Nutritional Yeast Healthy for Everyone?"},"content":{"rendered":"
<\/div>\n

Those with certain autoimmune diseases such as Crohn\u2019s disease should probably not eat nutritional yeast.<\/p>\n

Thousands of years ago, some yeast floated down into our flour and drinks, pleasing our palates, and we\u2019ve been regularly exposed<\/span><\/a> to it ever since. Yeast isn\u2019t a problem for most people, but even non-disease-causing microbes could potentially trigger autoimmune diseases like Crohn\u2019s disease in those who are susceptible because their finely tuned immune balance is somehow off. Maybe that\u2019s why bakers have<\/span><\/a> the highest Crohn\u2019s disease mortality and, from a different data set, also have<\/span><\/a> among the highest rates of Crohn\u2019s disease, as you can see at 0:30 in my video Is Nutritional Yeast Healthy for Everyone?<\/strong><\/span><\/a> Perhaps a \u201chypersensitivity to baker\u2019s yeast\u2026may play<\/span><\/a> a role in Crohn\u2019s disease.\u201d<\/p>\n

If you take people with Crohn\u2019s and remove<\/span><\/a> from their diets the three foods to which they appear to have the most antibodies, in order to try to calm their disease, and then add those foods back, you can provoke the symptoms once again and re-stimulate the inflammation. So, for example, an anal fistula gets nice and dry off those foods, starts oozing again once the foods are back in the diet, and then the spigot\u2019s turned back off when the foods are removed once more, as you can see (ew!) at 0:57 in my video<\/strong><\/span><\/a>.<\/p>\n

However, without a control group, you can\u2019t exclude the possibility of a powerful placebo effect. There hadn\u2019t been any such randomized controlled trials until researchers came up with a brilliant design. They tested<\/span><\/a> people with Crohn\u2019s for antibodies to 16 different foods and then randomized the subjects into two groups. Both groups were told to avoid four foods, but one group was told to avoid the four foods they reacted most<\/em> to, while the other group was told to avoid the foods they reacted least<\/em> to. The group assignments were given in sealed envelopes, so no one knew who was in which group until the end. So, did it matter? Yes, more than twice the probability of major clinical improvement was seen in the group told to stay away from the four foods their blood reacted most to\u2014but that wasn\u2019t just yeast. In fact, the \u201cexclusion of milk, pork, beef, and egg was most strongly associated with improvement,\u201d leading the researchers to suggest that perhaps instead of doing fancy blood tests, we should just tell our patients to cut out meat and eggs and see how they do. This would be consistent with population studies that associate<\/span><\/a> \u201cdiets high in animal fat\u201d with an increased risk of inflammatory bowel diseases, as well as interventional studies showing<\/span><\/a> that a plant-based diet, in which meat is cut down to about one serving every two weeks, can drop relapse rates as low as an extraordinary 8 percent over two years.<\/p>\n

But, what about the whole yeast question? Can\u2019t you just put some yeast up someone\u2019s butt and see what happens? Why, yes! Yes, you can, and researchers have. Indeed, researchers tested<\/span><\/a> rectal exposure to six different foods, including yeast, in Crohn\u2019s disease patients. This was kind of like a skin prick test, but instead of pricking the skin, they pricked the inside of people\u2019s rectums with various foods. You can see at 3:00 in my video<\/strong><\/span><\/a> the various prick sites for the different foods, and it\u2019s clear that yeast gave the most significant reaction in Crohn\u2019s patients.<\/p>\n

It appears<\/span><\/a> that baker\u2019s yeast, which is the same yeast as brewer\u2019s yeast and nutritional yeast, may indeed have disease-causing importance in Crohn\u2019s disease, but the good news would then be that it \u201cmay be of therapeutic relevance.\u201d If Crohn\u2019s patients went on a yeast-free diet, would they feel better? You don\u2019t know until you put it to the test.<\/p>\n

In fact, that\u2019s exactly what the original study linking yeast and Crohn\u2019s disease suggested<\/span><\/a> back in 1988. \u201cA controlled trial of a yeast free diet for patients with Crohn\u2019s disease may therefore be worth while.\u201d Why did it take years before such a study was done? Well, who\u2019s going to fund it? Big Soda Bread? Thankfully, there are charities like the National Association for Colitis and Crohn\u2019s disease, willing to put<\/span><\/a> up the (yeast-free) dough.<\/p>\n

Nineteen patients with Crohn\u2019s disease ate their regular diet for a month and were then switched to a yeast-exclusion diet. There was a significantly higher CDAI, Crohn\u2019s Disease Activity Index, which assesses symptoms like abdominal pain and diarrhea, during the period when they were eating yeast, compared to the yeast-free period. So, there was worse disease activity with yeast than without. Okay, but what was this yeast-free diet? They didn\u2019t just cut out bread and beer. The researchers switched people from dairy milk to soy milk and from white flour to whole wheat, for example. Just cutting<\/span><\/a> out milk can sometimes help with inflammatory bowel disease, as you can see at 4:43 in my video<\/strong><\/span><\/a>.<\/p>\n

So, with so many dietary changes, how do we know what role the yeast played? This is how we know what role the yeast played: After placing<\/span><\/a> the subjects on the new yeast-free diet, they then challenged the Crohn\u2019s sufferers with either a capsule of yeast or a placebo. A tiny amount of yeast, like giving them a quarter teaspoon of nutritional yeast a day, made them worse, suggesting \u201cyeast may be important in the pathogenesis [disease process] of Crohn\u2019s disease.\u201d<\/p>\n

Now, for the vast majority of people, yeast is not a problem, but in susceptible individuals, it may trigger an abnormal immune response in the gut. But, wait. I thought the paratuberculosis bug was considered a trigger for Crohn\u2019s disease. Well, maybe infection with paraTB is what \u201cinduces a hypersensitivity response to dietary yeast.\u201d Who knows? The bottom line is that people with Crohn\u2019s disease should<\/span><\/a> not go out of their way to add baker\u2019s, brewer\u2019s, or nutritional yeast to their diets.<\/p>\n

I introduced this topic in Does Nutritional Yeast Trigger Crohn\u2019s Disease?<\/strong><\/span><\/a>, then took a bit of a tangent with Is Candida<\/em> Syndrome Real?<\/strong><\/span><\/a>. Next, I finish up this video series by talking about another autoimmune disease that appears to be affected: Dietary Cure for Hidradenitis Suppurativa<\/strong><\/span><\/a>.<\/p>\n

\n

For more on Crohn\u2019s, see Preventing Crohn\u2019s Disease with Diet<\/strong><\/span><\/a> and Dietary Treatment of Crohn\u2019s Disease<\/strong><\/span><\/a>. <\/span><\/p>\n

And paratubercuwhat<\/em>? See Does Paratuberculosis in Milk Trigger Type 1 Diabetes?<\/strong><\/span><\/a><\/span> and<\/span> Does Paratuberculosis in Meat Trigger Type 1 Diabetes?<\/strong><\/span><\/a><\/p>\n

.<\/p>\n

In health,<\/p>\n

Michael Greger, M.D.<\/strong><\/p>\n

PS: If you haven\u2019t yet, you can subscribe to my free videos here<\/a><\/strong> and watch my live presentations:<\/p>\n<\/span>","protected":false},"excerpt":{"rendered":"

Those with certain autoimmune diseases such as Crohn\u2019s disease should probably not eat nutritional yeast.
\nThousands of years ago, some yeast floated down into our flour and drinks, pleasing our palates, and we\u2019ve been regularly exposed to it ever since. Yeast isn\u2019t a problem for most people, but even non-disease-causing microbes could potentially trigger autoimmune diseases like Crohn\u2019s disease in those who are susceptible because their finely tuned immune balance is somehow off. Maybe that\u2019s why bakers have the highest Crohn\u2019s disease mortality and, from a different data set, also have among the highest rates of Crohn\u2019s disease, as you can see at 0:30 in my video Is Nutritional Yeast Healthy for Everyone? Perhaps a \u201chypersensitivity to baker\u2019s yeast\u2026may play a role in Crohn\u2019s disease.\u201d
\nIf you take people with Crohn\u2019s and remove from their diets the three foods to which they appear to have the most antibodies, in order to try to calm their disease, and then add those foods back, you can provoke the symptoms once again and re-stimulate the inflammation. So, for example, an anal fistula gets nice and dry off those foods, starts oozing again once the foods are back in the diet, and then the spigot\u2019s turned back off when the foods are removed once more, as you can see (ew!) at 0:57 in my video.
\nHowever, without a control group, you can\u2019t exclude the possibility of a powerful placebo effect. There hadn\u2019t been any such randomized controlled trials until researchers came up with a brilliant design. They tested people with Crohn\u2019s for antibodies to 16 different foods and then randomized the subjects into two groups. Both groups were told to avoid four foods, but one group was told to avoid the four foods they reacted most to, while the other group was told to avoid the foods they reacted least to. The group assignments were given in sealed envelopes, so no one knew who was in which group until the end. So, did it matter? Yes, more than twice the probability of major clinical improvement was seen in the group told to stay away from the four foods their blood reacted most to\u2014but that wasn\u2019t just yeast. In fact, the \u201cexclusion of milk, pork, beef, and egg was most strongly associated with improvement,\u201d leading the researchers to suggest that perhaps instead of doing fancy blood tests, we should just tell our patients to cut out meat and eggs and see how they do. This would be consistent with population studies that associate \u201cdiets high in animal fat\u201d with an increased risk of inflammatory bowel diseases, as well as interventional studies showing that a plant-based diet, in which meat is cut down to about one serving every two weeks, can drop relapse rates as low as an extraordinary 8 percent over two years.
\nBut, what about the whole yeast question? Can\u2019t you just put some yeast up someone\u2019s butt and see what happens? Why, yes! Yes, you can, and researchers have. Indeed, researchers tested rectal exposure to six different foods, including yeast, in Crohn\u2019s disease patients. This was kind of like a skin prick test, but instead of pricking the skin, they pricked the inside of people\u2019s rectums with various foods. You can see at 3:00 in my video the various prick sites for the different foods, and it\u2019s clear that yeast gave the most significant reaction in Crohn\u2019s patients.
\nIt appears that baker\u2019s yeast, which is the same yeast as brewer\u2019s yeast and nutritional yeast, may indeed have disease-causing importance in Crohn\u2019s disease, but the good news would then be that it \u201cmay be of therapeutic relevance.\u201d If Crohn\u2019s patients went on a yeast-free diet, would they feel better? You don\u2019t know until you put it to the test.
\nIn fact, that\u2019s exactly what the original study linking yeast and Crohn\u2019s disease suggested back in 1988. \u201cA controlled trial of a yeast free diet for patients with Crohn\u2019s disease may therefore be worth while.\u201d Why did it take years before such a study was done? Well, who\u2019s going to fund it? Big Soda Bread? Thankfully, there are charities like the National Association for Colitis and Crohn\u2019s disease, willing to put up the (yeast-free) dough.
\nNineteen patients with Crohn\u2019s disease ate their regular diet for a month and were then switched to a yeast-exclusion diet. There was a significantly higher CDAI, Crohn\u2019s Disease Activity Index, which assesses symptoms like abdominal pain and diarrhea, during the period when they were eating yeast, compared to the yeast-free period. So, there was worse disease activity with yeast than without. Okay, but what was this yeast-free diet? They didn\u2019t just cut out bread and beer. The researchers switched people from dairy milk to soy milk and from white flour to whole wheat, for example. Just cutting out milk can sometimes help with inflammatory bowel disease, as you can see at 4:43 in my video.
\nSo, with so many dietary changes, how do we know what role the yeast played? This is how we know what role the yeast played: After placing the subjects on the new yeast-free diet, they then challenged the Crohn\u2019s sufferers with either a capsule of yeast or a placebo. A tiny amount of yeast, like giving them a quarter teaspoon of nutritional yeast a day, made them worse, suggesting \u201cyeast may be important in the pathogenesis [disease process] of Crohn\u2019s disease.\u201d
\nNow, for the vast majority of people, yeast is not a problem, but in susceptible individuals, it may trigger an abnormal immune response in the gut. But, wait. I thought the paratuberculosis bug was considered a trigger for Crohn\u2019s disease. Well, maybe infection with paraTB is what \u201cinduces a hypersensitivity response to dietary yeast.\u201d Who knows? The bottom line is that people with Crohn\u2019s disease should not go out of their way to add baker\u2019s, brewer\u2019s, or nutritional yeast to their diets.
\nI introduced this topic in Does Nutritional Yeast Trigger Crohn\u2019s Disease?, then took a bit of a tangent with Is Candida Syndrome Real?. Next, I finish up this video series by talking about another autoimmune disease that appears to be affected: Dietary Cure for Hidradenitis Suppurativa.
\nFor more on Crohn\u2019s, see Preventing Crohn\u2019s Disease with Diet and Dietary Treatment of Crohn\u2019s Disease.\u00a0
\nAnd paratubercuwhat? See Does Paratuberculosis in Milk Trigger Type 1 Diabetes? and Does Paratuberculosis in Meat Trigger Type 1 Diabetes?
\n.
\nIn health,
\nMichael Greger, M.D.
\nPS: If you haven\u2019t yet, you can subscribe to my free videos\u00a0here\u00a0and watch my live presentations:<\/p>\n","protected":false},"author":3,"featured_media":17048,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","_uag_custom_page_level_css":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"footnotes":"","_jetpack_memberships_contains_paid_content":false,"jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[2,4616],"tags":[4862,4863,4635,4847,4864,4865,4866,4770,4848,4867,4868,4869,4850,4636,4870,4640,4656,4658,4852,4855,12,4856,4871,4872,4873,4673,4874,4697,4682,4683,4861],"jetpack_publicize_connections":[],"acf":[],"nelio_content":{"isAutoShareEnabled":false,"autoShareEndMode":"never","automationSources":{"useCustomSentences":false,"customSentences":[]},"followers":[3,2],"suggestedReferences":[],"efiUrl":"","efiAlt":"","highlights":[],"permalinkQueryArgs":[]},"yoast_head":"\nIs Nutritional Yeast Healthy for Everyone? - Dr. Nicolle<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Is Nutritional Yeast Healthy for Everyone?\" \/>\n<meta property=\"og:description\" content=\"Those with certain autoimmune diseases such as Crohn\u2019s disease should probably not eat nutritional yeast. Thousands of years ago, some yeast floated down into our flour and drinks, pleasing our palates, and we\u2019ve been regularly exposed to it ever since. Yeast isn\u2019t a problem for most people, but even non-disease-causing microbes could potentially trigger autoimmune diseases like Crohn\u2019s disease in those who are susceptible because their finely tuned immune balance is somehow off. Maybe that\u2019s why bakers have the highest Crohn\u2019s disease mortality and, from a different data set, also have among the highest rates of Crohn\u2019s disease, as you can see at 0:30 in my video Is Nutritional Yeast Healthy for Everyone? Perhaps a \u201chypersensitivity to baker\u2019s yeast\u2026may play a role in Crohn\u2019s disease.\u201d If you take people with Crohn\u2019s and remove from their diets the three foods to which they appear to have the most antibodies, in order to try to calm their disease, and then add those foods back, you can provoke the symptoms once again and re-stimulate the inflammation. So, for example, an anal fistula gets nice and dry off those foods, starts oozing again once the foods are back in the diet, and then the spigot\u2019s turned back off when the foods are removed once more, as you can see (ew!) at 0:57 in my video. However, without a control group, you can\u2019t exclude the possibility of a powerful placebo effect. There hadn\u2019t been any such randomized controlled trials until researchers came up with a brilliant design. They tested people with Crohn\u2019s for antibodies to 16 different foods and then randomized the subjects into two groups. Both groups were told to avoid four foods, but one group was told to avoid the four foods they reacted most to, while the other group was told to avoid the foods they reacted least to. The group assignments were given in sealed envelopes, so no one knew who was in which group until the end. So, did it matter? Yes, more than twice the probability of major clinical improvement was seen in the group told to stay away from the four foods their blood reacted most to\u2014but that wasn\u2019t just yeast. In fact, the \u201cexclusion of milk, pork, beef, and egg was most strongly associated with improvement,\u201d leading the researchers to suggest that perhaps instead of doing fancy blood tests, we should just tell our patients to cut out meat and eggs and see how they do. This would be consistent with population studies that associate \u201cdiets high in animal fat\u201d with an increased risk of inflammatory bowel diseases, as well as interventional studies showing that a plant-based diet, in which meat is cut down to about one serving every two weeks, can drop relapse rates as low as an extraordinary 8 percent over two years. But, what about the whole yeast question? Can\u2019t you just put some yeast up someone\u2019s butt and see what happens? Why, yes! Yes, you can, and researchers have. Indeed, researchers tested rectal exposure to six different foods, including yeast, in Crohn\u2019s disease patients. This was kind of like a skin prick test, but instead of pricking the skin, they pricked the inside of people\u2019s rectums with various foods. You can see at 3:00 in my video the various prick sites for the different foods, and it\u2019s clear that yeast gave the most significant reaction in Crohn\u2019s patients. It appears that baker\u2019s yeast, which is the same yeast as brewer\u2019s yeast and nutritional yeast, may indeed have disease-causing importance in Crohn\u2019s disease, but the good news would then be that it \u201cmay be of therapeutic relevance.\u201d If Crohn\u2019s patients went on a yeast-free diet, would they feel better? You don\u2019t know until you put it to the test. In fact, that\u2019s exactly what the original study linking yeast and Crohn\u2019s disease suggested back in 1988. \u201cA controlled trial of a yeast free diet for patients with Crohn\u2019s disease may therefore be worth while.\u201d Why did it take years before such a study was done? Well, who\u2019s going to fund it? Big Soda Bread? Thankfully, there are charities like the National Association for Colitis and Crohn\u2019s disease, willing to put up the (yeast-free) dough. Nineteen patients with Crohn\u2019s disease ate their regular diet for a month and were then switched to a yeast-exclusion diet. There was a significantly higher CDAI, Crohn\u2019s Disease Activity Index, which assesses symptoms like abdominal pain and diarrhea, during the period when they were eating yeast, compared to the yeast-free period. So, there was worse disease activity with yeast than without. Okay, but what was this yeast-free diet? They didn\u2019t just cut out bread and beer. The researchers switched people from dairy milk to soy milk and from white flour to whole wheat, for example. Just cutting out milk can sometimes help with inflammatory bowel disease, as you can see at 4:43 in my video. So, with so many dietary changes, how do we know what role the yeast played? This is how we know what role the yeast played: After placing the subjects on the new yeast-free diet, they then challenged the Crohn\u2019s sufferers with either a capsule of yeast or a placebo. A tiny amount of yeast, like giving them a quarter teaspoon of nutritional yeast a day, made them worse, suggesting \u201cyeast may be important in the pathogenesis [disease process] of Crohn\u2019s disease.\u201d Now, for the vast majority of people, yeast is not a problem, but in susceptible individuals, it may trigger an abnormal immune response in the gut. But, wait. I thought the paratuberculosis bug was considered a trigger for Crohn\u2019s disease. Well, maybe infection with paraTB is what \u201cinduces a hypersensitivity response to dietary yeast.\u201d Who knows? The bottom line is that people with Crohn\u2019s disease should not go out of their way to add baker\u2019s, brewer\u2019s, or nutritional yeast to their diets. I introduced this topic in Does Nutritional Yeast Trigger Crohn\u2019s Disease?, then took a bit of a tangent with Is Candida Syndrome Real?. Next, I finish up this video series by talking about another autoimmune disease that appears to be affected: Dietary Cure for Hidradenitis Suppurativa. For more on Crohn\u2019s, see Preventing Crohn\u2019s Disease with Diet and Dietary Treatment of Crohn\u2019s Disease.\u00a0 And paratubercuwhat? See Does Paratuberculosis in Milk Trigger Type 1 Diabetes? and Does Paratuberculosis in Meat Trigger Type 1 Diabetes? . In health, Michael Greger, M.D. PS: If you haven\u2019t yet, you can subscribe to my free videos\u00a0here\u00a0and watch my live presentations:\" \/>\n<meta property=\"og:url\" content=\"https:\/\/drnicollemd.com\/2021\/02\/19\/is-nutritional-yeast-healthy-for-everyone\/\" \/>\n<meta property=\"og:site_name\" content=\"Dr. Nicolle\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DrNicolleMD\" \/>\n<meta property=\"article:published_time\" content=\"2021-02-19T19:34:17+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-10-21T04:37:24+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Michael Greger M.D. FACLM\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DrNicolleMD\" \/>\n<meta name=\"twitter:site\" content=\"@DrNicolleMD\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Michael Greger M.D. FACLM\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/drnicollemd.com\/2021\/02\/19\/is-nutritional-yeast-healthy-for-everyone\/\"},\"author\":{\"name\":\"Michael Greger M.D. FACLM\",\"@id\":\"https:\/\/drnicollemd.com\/#\/schema\/person\/2ffab0cf3ccc64cc569b56814b3094fa\"},\"headline\":\"Is Nutritional Yeast Healthy for Everyone?\",\"datePublished\":\"2021-02-19T19:34:17+00:00\",\"dateModified\":\"2021-10-21T04:37:24+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/drnicollemd.com\/2021\/02\/19\/is-nutritional-yeast-healthy-for-everyone\/\"},\"wordCount\":1131,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/drnicollemd.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg\",\"keywords\":[\"abdominal pain\",\"animal fat\",\"animal products\",\"autoimmune diseases\",\"beef\",\"beer\",\"bread\",\"breakfast cereal\",\"brewer\u2019s yeast\",\"cabbage\",\"citrus\",\"colitis\",\"crohn's disease\",\"dairy\",\"diarrhea\",\"eggs\",\"immune function\",\"inflammation\",\"inflammatory bowel disease\",\"milk\",\"News\",\"nutritional yeast\",\"paratuberculosis\",\"peanuts\",\"placebo effect\",\"plant-based diets\",\"pork\",\"soy milk\",\"vegans\",\"vegetarians\",\"yeast\"],\"articleSection\":[\"Blog\",\"Fit, Food, and Fun\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#respond\"]}],\"copyrightYear\":\"2021\",\"copyrightHolder\":{\"@id\":\"https:\/\/drnicollemd.com\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/drnicollemd.com\/2021\/02\/19\/is-nutritional-yeast-healthy-for-everyone\/\",\"url\":\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/\",\"name\":\"Is Nutritional Yeast Healthy for Everyone? - Dr. Nicolle\",\"isPartOf\":{\"@id\":\"https:\/\/drnicollemd.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg\",\"datePublished\":\"2021-02-19T19:34:17+00:00\",\"dateModified\":\"2021-10-21T04:37:24+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#primaryimage\",\"url\":\"https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg\",\"contentUrl\":\"https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg\",\"width\":1200,\"height\":675},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/drnicollemd.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Blog\",\"item\":\"https:\/\/drnicollemd.com\/category\/blog\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Fit, Food, and Fun\",\"item\":\"https:\/\/drnicollemd.com\/category\/blog\/fit-food-and-fun\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Is Nutritional Yeast Healthy for Everyone?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/drnicollemd.com\/#website\",\"url\":\"https:\/\/drnicollemd.com\/\",\"name\":\"Dr. Nicolle\",\"description\":\"Minimize Medications. Maximize Health.\",\"publisher\":{\"@id\":\"https:\/\/drnicollemd.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/drnicollemd.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":[\"Organization\",\"Place\",\"Physician\"],\"@id\":\"https:\/\/drnicollemd.com\/#organization\",\"name\":\"Dr. Nicolle MD\",\"url\":\"https:\/\/drnicollemd.com\/\",\"logo\":{\"@id\":\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#local-main-organization-logo\"},\"image\":{\"@id\":\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#local-main-organization-logo\"},\"sameAs\":[\"https:\/\/www.facebook.com\/DrNicolleMD\",\"https:\/\/x.com\/DrNicolleMD\",\"https:\/\/www.instagram.com\/drnicollemd\/\",\"https:\/\/www.linkedin.com\/in\/drnicollemd\/\",\"https:\/\/www.pinterest.com\/drnicollemd\/\",\"https:\/\/www.youtube.com\/drnicollemd\"],\"address\":{\"@id\":\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#local-main-place-address\"},\"telephone\":[\"678-948-5288\"],\"openingHoursSpecification\":[{\"@type\":\"OpeningHoursSpecification\",\"dayOfWeek\":[\"Tuesday\",\"Wednesday\",\"Thursday\",\"Friday\",\"Saturday\",\"Sunday\",\"Monday\"],\"opens\":\"09:00\",\"closes\":\"17:00\"}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/drnicollemd.com\/#\/schema\/person\/2ffab0cf3ccc64cc569b56814b3094fa\",\"name\":\"Michael Greger M.D. FACLM\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/drnicollemd.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/6d3c428c0d4f619570e9a0c4a0f6b4fe?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/6d3c428c0d4f619570e9a0c4a0f6b4fe?s=96&d=mm&r=g\",\"caption\":\"Michael Greger M.D. FACLM\"},\"url\":\"https:\/\/drnicollemd.com\/author\/michael-greger-m-d-faclm\/\"},{\"@type\":\"PostalAddress\",\"@id\":\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#local-main-place-address\",\"streetAddress\":\"Omega Integrative Healthcare, LLC, 925B Peachtree St NE, Unit 500\",\"addressLocality\":\"Atlanta\",\"postalCode\":\"30309\",\"addressRegion\":\"GA\",\"addressCountry\":\"US\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#local-main-organization-logo\",\"url\":\"https:\/\/drnicollemd.com\/wp-content\/uploads\/2020\/06\/DrNicolle_Color-e1591779905941.png\",\"contentUrl\":\"https:\/\/drnicollemd.com\/wp-content\/uploads\/2020\/06\/DrNicolle_Color-e1591779905941.png\",\"width\":670,\"height\":239,\"caption\":\"Dr. Nicolle MD\"}]}<\/script>\n<meta name=\"geo.placename\" content=\"Atlanta\" \/>\n<meta name=\"geo.region\" content=\"United States (US)\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Is Nutritional Yeast Healthy for Everyone? - Dr. Nicolle","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/","og_locale":"en_US","og_type":"article","og_title":"Is Nutritional Yeast Healthy for Everyone?","og_description":"Those with certain autoimmune diseases such as Crohn\u2019s disease should probably not eat nutritional yeast. Thousands of years ago, some yeast floated down into our flour and drinks, pleasing our palates, and we\u2019ve been regularly exposed to it ever since. Yeast isn\u2019t a problem for most people, but even non-disease-causing microbes could potentially trigger autoimmune diseases like Crohn\u2019s disease in those who are susceptible because their finely tuned immune balance is somehow off. Maybe that\u2019s why bakers have the highest Crohn\u2019s disease mortality and, from a different data set, also have among the highest rates of Crohn\u2019s disease, as you can see at 0:30 in my video Is Nutritional Yeast Healthy for Everyone? Perhaps a \u201chypersensitivity to baker\u2019s yeast\u2026may play a role in Crohn\u2019s disease.\u201d If you take people with Crohn\u2019s and remove from their diets the three foods to which they appear to have the most antibodies, in order to try to calm their disease, and then add those foods back, you can provoke the symptoms once again and re-stimulate the inflammation. So, for example, an anal fistula gets nice and dry off those foods, starts oozing again once the foods are back in the diet, and then the spigot\u2019s turned back off when the foods are removed once more, as you can see (ew!) at 0:57 in my video. However, without a control group, you can\u2019t exclude the possibility of a powerful placebo effect. There hadn\u2019t been any such randomized controlled trials until researchers came up with a brilliant design. They tested people with Crohn\u2019s for antibodies to 16 different foods and then randomized the subjects into two groups. Both groups were told to avoid four foods, but one group was told to avoid the four foods they reacted most to, while the other group was told to avoid the foods they reacted least to. The group assignments were given in sealed envelopes, so no one knew who was in which group until the end. So, did it matter? Yes, more than twice the probability of major clinical improvement was seen in the group told to stay away from the four foods their blood reacted most to\u2014but that wasn\u2019t just yeast. In fact, the \u201cexclusion of milk, pork, beef, and egg was most strongly associated with improvement,\u201d leading the researchers to suggest that perhaps instead of doing fancy blood tests, we should just tell our patients to cut out meat and eggs and see how they do. This would be consistent with population studies that associate \u201cdiets high in animal fat\u201d with an increased risk of inflammatory bowel diseases, as well as interventional studies showing that a plant-based diet, in which meat is cut down to about one serving every two weeks, can drop relapse rates as low as an extraordinary 8 percent over two years. But, what about the whole yeast question? Can\u2019t you just put some yeast up someone\u2019s butt and see what happens? Why, yes! Yes, you can, and researchers have. Indeed, researchers tested rectal exposure to six different foods, including yeast, in Crohn\u2019s disease patients. This was kind of like a skin prick test, but instead of pricking the skin, they pricked the inside of people\u2019s rectums with various foods. You can see at 3:00 in my video the various prick sites for the different foods, and it\u2019s clear that yeast gave the most significant reaction in Crohn\u2019s patients. It appears that baker\u2019s yeast, which is the same yeast as brewer\u2019s yeast and nutritional yeast, may indeed have disease-causing importance in Crohn\u2019s disease, but the good news would then be that it \u201cmay be of therapeutic relevance.\u201d If Crohn\u2019s patients went on a yeast-free diet, would they feel better? You don\u2019t know until you put it to the test. In fact, that\u2019s exactly what the original study linking yeast and Crohn\u2019s disease suggested back in 1988. \u201cA controlled trial of a yeast free diet for patients with Crohn\u2019s disease may therefore be worth while.\u201d Why did it take years before such a study was done? Well, who\u2019s going to fund it? Big Soda Bread? Thankfully, there are charities like the National Association for Colitis and Crohn\u2019s disease, willing to put up the (yeast-free) dough. Nineteen patients with Crohn\u2019s disease ate their regular diet for a month and were then switched to a yeast-exclusion diet. There was a significantly higher CDAI, Crohn\u2019s Disease Activity Index, which assesses symptoms like abdominal pain and diarrhea, during the period when they were eating yeast, compared to the yeast-free period. So, there was worse disease activity with yeast than without. Okay, but what was this yeast-free diet? They didn\u2019t just cut out bread and beer. The researchers switched people from dairy milk to soy milk and from white flour to whole wheat, for example. Just cutting out milk can sometimes help with inflammatory bowel disease, as you can see at 4:43 in my video. So, with so many dietary changes, how do we know what role the yeast played? This is how we know what role the yeast played: After placing the subjects on the new yeast-free diet, they then challenged the Crohn\u2019s sufferers with either a capsule of yeast or a placebo. A tiny amount of yeast, like giving them a quarter teaspoon of nutritional yeast a day, made them worse, suggesting \u201cyeast may be important in the pathogenesis [disease process] of Crohn\u2019s disease.\u201d Now, for the vast majority of people, yeast is not a problem, but in susceptible individuals, it may trigger an abnormal immune response in the gut. But, wait. I thought the paratuberculosis bug was considered a trigger for Crohn\u2019s disease. Well, maybe infection with paraTB is what \u201cinduces a hypersensitivity response to dietary yeast.\u201d Who knows? The bottom line is that people with Crohn\u2019s disease should not go out of their way to add baker\u2019s, brewer\u2019s, or nutritional yeast to their diets. I introduced this topic in Does Nutritional Yeast Trigger Crohn\u2019s Disease?, then took a bit of a tangent with Is Candida Syndrome Real?. Next, I finish up this video series by talking about another autoimmune disease that appears to be affected: Dietary Cure for Hidradenitis Suppurativa. For more on Crohn\u2019s, see Preventing Crohn\u2019s Disease with Diet and Dietary Treatment of Crohn\u2019s Disease.\u00a0 And paratubercuwhat? See Does Paratuberculosis in Milk Trigger Type 1 Diabetes? and Does Paratuberculosis in Meat Trigger Type 1 Diabetes? . In health, Michael Greger, M.D. PS: If you haven\u2019t yet, you can subscribe to my free videos\u00a0here\u00a0and watch my live presentations:","og_url":"https:\/\/drnicollemd.com\/2021\/02\/19\/is-nutritional-yeast-healthy-for-everyone\/","og_site_name":"Dr. Nicolle","article_publisher":"https:\/\/www.facebook.com\/DrNicolleMD","article_published_time":"2021-02-19T19:34:17+00:00","article_modified_time":"2021-10-21T04:37:24+00:00","og_image":[{"width":1200,"height":675,"url":"https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg","type":"image\/jpeg"}],"author":"Michael Greger M.D. FACLM","twitter_card":"summary_large_image","twitter_creator":"@DrNicolleMD","twitter_site":"@DrNicolleMD","twitter_misc":{"Written by":"Michael Greger M.D. FACLM","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#article","isPartOf":{"@id":"https:\/\/drnicollemd.com\/2021\/02\/19\/is-nutritional-yeast-healthy-for-everyone\/"},"author":{"name":"Michael Greger M.D. FACLM","@id":"https:\/\/drnicollemd.com\/#\/schema\/person\/2ffab0cf3ccc64cc569b56814b3094fa"},"headline":"Is Nutritional Yeast Healthy for Everyone?","datePublished":"2021-02-19T19:34:17+00:00","dateModified":"2021-10-21T04:37:24+00:00","mainEntityOfPage":{"@id":"https:\/\/drnicollemd.com\/2021\/02\/19\/is-nutritional-yeast-healthy-for-everyone\/"},"wordCount":1131,"commentCount":0,"publisher":{"@id":"https:\/\/drnicollemd.com\/#organization"},"image":{"@id":"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#primaryimage"},"thumbnailUrl":"https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg","keywords":["abdominal pain","animal fat","animal products","autoimmune diseases","beef","beer","bread","breakfast cereal","brewer\u2019s yeast","cabbage","citrus","colitis","crohn's disease","dairy","diarrhea","eggs","immune function","inflammation","inflammatory bowel disease","milk","News","nutritional yeast","paratuberculosis","peanuts","placebo effect","plant-based diets","pork","soy milk","vegans","vegetarians","yeast"],"articleSection":["Blog","Fit, Food, and Fun"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#respond"]}],"copyrightYear":"2021","copyrightHolder":{"@id":"https:\/\/drnicollemd.com\/#organization"}},{"@type":"WebPage","@id":"https:\/\/drnicollemd.com\/2021\/02\/19\/is-nutritional-yeast-healthy-for-everyone\/","url":"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/","name":"Is Nutritional Yeast Healthy for Everyone? - Dr. Nicolle","isPartOf":{"@id":"https:\/\/drnicollemd.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#primaryimage"},"image":{"@id":"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#primaryimage"},"thumbnailUrl":"https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg","datePublished":"2021-02-19T19:34:17+00:00","dateModified":"2021-10-21T04:37:24+00:00","breadcrumb":{"@id":"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#primaryimage","url":"https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg","contentUrl":"https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg","width":1200,"height":675},{"@type":"BreadcrumbList","@id":"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/drnicollemd.com\/"},{"@type":"ListItem","position":2,"name":"Blog","item":"https:\/\/drnicollemd.com\/category\/blog\/"},{"@type":"ListItem","position":3,"name":"Fit, Food, and Fun","item":"https:\/\/drnicollemd.com\/category\/blog\/fit-food-and-fun\/"},{"@type":"ListItem","position":4,"name":"Is Nutritional Yeast Healthy for Everyone?"}]},{"@type":"WebSite","@id":"https:\/\/drnicollemd.com\/#website","url":"https:\/\/drnicollemd.com\/","name":"Dr. Nicolle","description":"Minimize Medications. Maximize Health.","publisher":{"@id":"https:\/\/drnicollemd.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/drnicollemd.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":["Organization","Place","Physician"],"@id":"https:\/\/drnicollemd.com\/#organization","name":"Dr. Nicolle MD","url":"https:\/\/drnicollemd.com\/","logo":{"@id":"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#local-main-organization-logo"},"image":{"@id":"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#local-main-organization-logo"},"sameAs":["https:\/\/www.facebook.com\/DrNicolleMD","https:\/\/x.com\/DrNicolleMD","https:\/\/www.instagram.com\/drnicollemd\/","https:\/\/www.linkedin.com\/in\/drnicollemd\/","https:\/\/www.pinterest.com\/drnicollemd\/","https:\/\/www.youtube.com\/drnicollemd"],"address":{"@id":"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#local-main-place-address"},"telephone":["678-948-5288"],"openingHoursSpecification":[{"@type":"OpeningHoursSpecification","dayOfWeek":["Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday","Monday"],"opens":"09:00","closes":"17:00"}]},{"@type":"Person","@id":"https:\/\/drnicollemd.com\/#\/schema\/person\/2ffab0cf3ccc64cc569b56814b3094fa","name":"Michael Greger M.D. FACLM","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/drnicollemd.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/6d3c428c0d4f619570e9a0c4a0f6b4fe?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/6d3c428c0d4f619570e9a0c4a0f6b4fe?s=96&d=mm&r=g","caption":"Michael Greger M.D. FACLM"},"url":"https:\/\/drnicollemd.com\/author\/michael-greger-m-d-faclm\/"},{"@type":"PostalAddress","@id":"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#local-main-place-address","streetAddress":"Omega Integrative Healthcare, LLC, 925B Peachtree St NE, Unit 500","addressLocality":"Atlanta","postalCode":"30309","addressRegion":"GA","addressCountry":"US"},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/nutritionfacts.org\/2021\/02\/18\/is-nutritional-yeast-healthy-for-everyone\/#local-main-organization-logo","url":"https:\/\/drnicollemd.com\/wp-content\/uploads\/2020\/06\/DrNicolle_Color-e1591779905941.png","contentUrl":"https:\/\/drnicollemd.com\/wp-content\/uploads\/2020\/06\/DrNicolle_Color-e1591779905941.png","width":670,"height":239,"caption":"Dr. Nicolle MD"}]},"geo.placename":"Atlanta","geo.region":"United States (US)"},"jetpack_featured_media_url":"https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg","uagb_featured_image_src":{"full":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg",1200,675,false],"thumbnail":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-150x150.jpeg",150,150,true],"medium":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-300x169.jpeg",300,169,true],"medium_large":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-768x432.jpeg",768,432,true],"large":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-1024x576.jpeg",1024,576,true],"1536x1536":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg",1200,675,false],"2048x2048":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg",1200,675,false],"infusionsoft_image":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-610x343.jpeg",610,343,true],"Personnel Thumbnail":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-700x500.jpeg",700,500,true],"Portfolio Thumbnail":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-700x450.jpeg",700,450,true],"Portfolio Thumbnail Portrait":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-700x660.jpeg",700,660,true],"Portfolio Thumbnail Portrait 2":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-600x675.jpeg",600,675,true],"Large Landscape ":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-1200x580.jpeg",1200,580,true],"Large Landscape 2":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg",1200,675,false],"Portfolio Side Description Large":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-900x500.jpeg",900,500,true],"Portfolio Metro 1":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-290x430.jpeg",290,430,true],"Portfolio Metro 2":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-290x215.jpeg",290,215,true],"Portfolio Metro 3":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-590x215.jpeg",590,215,true],"Blog Full Thumbnail":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-1100x490.jpeg",1100,490,true],"Blog Column Thumbnail":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-700x430.jpeg",700,430,true],"Personnel Thumbnail 2":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-550x500.jpeg",550,500,true],"Large Landscape 3":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg",1200,675,false],"woocommerce_thumbnail":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-300x300.jpeg",300,300,true],"woocommerce_single":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-600x338.jpeg",600,338,true],"woocommerce_gallery_thumbnail":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1-150x150.jpeg",150,150,true],"web-stories-poster-portrait":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg",640,360,false],"web-stories-publisher-logo":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg",96,54,false],"web-stories-thumbnail":["https:\/\/drnicollemd.com\/wp-content\/uploads\/2021\/02\/6-1-1200x675-1.jpeg",150,84,false]},"uagb_author_info":{"display_name":"Michael Greger M.D. FACLM","author_link":"https:\/\/drnicollemd.com\/author\/michael-greger-m-d-faclm\/"},"uagb_comment_info":0,"uagb_excerpt":"Those with certain autoimmune diseases such as Crohn\u2019s disease should probably not eat nutritional yeast. Thousands of years ago, some yeast floated down into our flour and drinks, pleasing our palates, and we\u2019ve been regularly exposed to it ever since. Yeast isn\u2019t a problem for most people, but even non-disease-causing microbes could potentially trigger autoimmune…","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paXPaH-4qW","_links":{"self":[{"href":"https:\/\/drnicollemd.com\/wp-json\/wp\/v2\/posts\/17046"}],"collection":[{"href":"https:\/\/drnicollemd.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/drnicollemd.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/drnicollemd.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/drnicollemd.com\/wp-json\/wp\/v2\/comments?post=17046"}],"version-history":[{"count":1,"href":"https:\/\/drnicollemd.com\/wp-json\/wp\/v2\/posts\/17046\/revisions"}],"predecessor-version":[{"id":45065,"href":"https:\/\/drnicollemd.com\/wp-json\/wp\/v2\/posts\/17046\/revisions\/45065"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/drnicollemd.com\/wp-json\/wp\/v2\/media\/17048"}],"wp:attachment":[{"href":"https:\/\/drnicollemd.com\/wp-json\/wp\/v2\/media?parent=17046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/drnicollemd.com\/wp-json\/wp\/v2\/categories?post=17046"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/drnicollemd.com\/wp-json\/wp\/v2\/tags?post=17046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}