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You are here: Home / Natural Health / The Chilling Truth About Nutritional Yeast

Updated on March 31, 2022 By Guest Author | This post may contain affiliate links. See my disclosure policy here.

The Chilling Truth About Nutritional Yeast

Parmesan cheese is one of a few kinds of cheese that can give you a variety of tastes: umami, saltiness, and, of course, cheesiness. It is a great natural flavoring you can add to nearly any savory dish you can think of: soups, stews, salads, and other baked goodies. You can even add it to some of your favorite pastries, other types of desserts, and even some energy snacks.

Because this one ingredient can give you different flavors, parmesan cheese is one of the main staples in many home and commercial pantries today.

nutritional yeast substitute

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This is a Guest Post: We appreciate guest authors. However, the viewpoints expressed in this blog post may, or may not necessarily reflect the viewpoints of Living Natural Today.

Parmesan Cheese Substitute: Vegan Version

Since parmesan cheese is a dairy product, it is something that vegans and individuals with lactose intolerance can’t eat.

For people who can’t eat parmesan cheese, nutritional yeast has been their favorite substitute. Also known as nooch, nutritional yeast has a distinct nutty, umami, and cheesy flavor.

Nutritional yeast is a type of dehydrated yeast product.

The yeast comes from the Saccharomyces cerevisiae strain, the same type of yeast that is used for brewing beer and baking bread.

Whey, molasses, and sugar beets are the most common sources of yeast for this type of additive. The yeast is harvested, washed, heated to dry, then crumbled or pulverized into powder form, ready for sprinkling.

Nutritional Yeast Dangers

There are some negative effects of frequent nutritional yeast consumption. Although nutritional yeast is an excellent alternative to parmesan cheese, unfortunately, it is not the healthiest or safest substitute due to the following reasons:

1. It has mold toxins

Since yeast is a type of fungi, it may contain mold toxins.

When you consume too much yeast, a yeast-like fungus called Candida albicans may grow in your body. This will affect the fungal biome of your gut.

An imbalance in the gut microbiome leads to fatigue and brain fog due to cellular damage. This imbalance can also cause systemic inflammation as well.

Additionally, because of this imbalance, your body won’t effectively absorb various essential vitamins including vitamins K and B12 from your food. Because of this, you may suffer from certain nutrient deficiencies.

Finally, the toxins from yeast may heighten your sugar cravings. As such, you may soon find yourself consuming more sugary foods and drinks. And this will do nothing good for your weight loss goals and overall health.

2. It contains MSG

Although monosodium glutamate or MSG is seldom intentionally added to nutritional yeast, the manufacturing process causes it to have this unhealthy ingredient.

During the production process, glutamic acid may be freed from the yeast’s protein content. When released, it becomes an excitotoxin.

Excitotoxins obstruct normal brain functioning by over-stimulating neuron receptors in the hypothalamus. They cause the death of neurons as well.

Prolonged ingestion of MSG can cause side effects similar to the extended intake of neurological drugs. There are also a number of adverse reactions caused by MSG including migraine attacks, cardiac and respiratory issues.

Additionally, studies also show that prolonged ingestion of excitotoxins can cause long-term, serious neurodegenerative diseases including Alzheimer’s disease and Parkinson’s disease.

3. It can cause gastrointestinal and digestive issues

People with inflammatory bowel disease (IBD), such as Crohn’s disease, are typically intolerant to nutritional yeast.

This was proven in one study which showed that feeding mice brewer’s yeast aggravates symptoms of IBD. These symptoms include severe diarrhea, weight loss, and fatigue.

Although brewer’s yeast is a different product than nutritional yeast, both of them are made from the same species of yeast. Other studies also show that individuals with Crohn’s disease may be more sensitive to or intolerant of nutritional yeast.

It is also worth noting here that nutritional yeast is loaded with fiber. Twenty-one grams or two tablespoons of nutritional yeast flakes can give you about five grams of dietary fiber. This is approximately 20 percent of the recommended daily intake.

Although fiber is good for digestive health, suddenly and quickly increasing your fiber intake can lead to certain issues including abdominal cramps and even diarrhea. This is something that you will certainly experience if you are not used to eating high-fiber foods.

Because of this, it is best to use nutritional yeast gradually at first and modify servings as your body adapts to the higher fiber consumption.

Nutritional Yeast Alternatives

Nutritional yeast is considered the best option for parmesan cheese and other types of cheese. But with the possible side effects and dangers of nutritional yeast when used frequently, you will do well to look for healthier alternatives.

Some potential options are raw dairy and organic, grass-fed cheese, and yogurt. You can also add grass-fed butter or ghee to your meals. If you’re craving something really creamy, use coconut milk and MCT oil as well.

And if one of your reasons for adding nooch to your dishes is its nutrient content, you can still get the essential vitamins and minerals you need from the different natural and quick energy foods you can make or buy.

dangers of nutritional yeast

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AUTHOR BIO

Dave Asprey is the creator of the widely-popular Bulletproof Coffee, host of the #1 health podcast, Bulletproof Radio, and author of the New York Times bestselling book, “The Bulletproof Diet.” Through his work, the Silicon Valley investor and technology entrepreneur provides information, techniques, and keys to taking control of and improving your biochemistry, your body, and your mind so they work in unison, helping you execute at levels far beyond what you’d expect, without burning out, getting sick, or allowing stress to control your decisions.


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Article by Guest Author / Filed Under: Natural Health 14 Comments

Comments

  1. Matt says

    August 14, 2022 at 6:37 pm

    Thank you for this post, I’m an ex vegan but still consume plant bases product, and I’ve recently learned that nooch contained MSG and was baffled. I started to wonder if it was related to the ” sickness ” that i felt. I also discovered b12 harmed my body which isnt a coincidence, do you know if bear yeast is the same ? Thats what they have in France here and it seems not alike nooch at all, thanks a lot

    Reply
    • Teresa says

      August 15, 2022 at 12:25 pm

      Thanks for stopping by. Sorry, but I’m not sure of the answer to your question.

      Reply
  2. Ms Mary Thomas says

    June 9, 2022 at 1:35 pm

    Anne Wigmore, pioneer and founder of the wheatgrass juice therapy at Hippocrates Institute would never allow patients to add nutritional yeast to the raw vegan diet. I wanted to find out why and found your fascinating article.
    Thank you so much for the warning and for explaining why it should be left out of a vegan diet.
    I just ordered six packets of the stuff but it will have to be binned as I don’t want to pass the poison on to others! Have been eating the stuff for years. Yikes!
    Many thanks, bless you!

    Reply
    • Teresa says

      June 13, 2022 at 10:35 am

      Thanks for stopping by. I’m glad the article helped.

      Reply
  3. Adriana says

    January 7, 2022 at 11:29 am

    I’m really happy that stumbled upon this.
    I recently purchased some nutritional yeast. I’m a person who, knock on wood, doesn’t get headaches and then sure enough was having a crazy migraine wasn’t letting me sleep right after using the nutritional yeast about 2 tablespoons for a few days also noticed tightness in my upper chest was trying to figure out why so, began researching what I’ve introduced into my diet. Well, needless to say I will not be taking this nutritional yeast anymore. I do recall in my early twenties having an allergic reaction to MSG had no idea… so again I’m so very glad I saw this.
    Thanks!

    Reply
    • Teresa says

      January 7, 2022 at 4:52 pm

      Sorry to hear about your reactions. Glad you found this article helpful.

      Reply
  4. Maddie says

    November 10, 2021 at 6:29 am

    I have been eating it for about a year now, not everyday but when I cook certain foods I add a bit in it to thicken it. Yuk, maybe that explains why I am getting sick a lot lately.

    Reply
  5. Karen says

    April 3, 2021 at 12:02 pm

    Thanks for sharing this. I’d heard that nutritional yeast contained MSG since they’ve repackaged it under “Natural Flavors “. Medical Medium is also trying to get the word out on it. When you research it online, it’s interesting to see all the wonderful things they say about it. Anything negative about it gets buried under a lot of misinformation. Must be big money in selling their MSG to unwitting people.. Hopefully word will get out before more people get sick from it..

    Reply
    • Teresa says

      April 5, 2021 at 12:18 pm

      I agree! Thanks for stopping by!

      Reply
      • Nicole says

        May 31, 2021 at 3:01 pm

        So it’s not made from the same family, “the manufacturting process causes it to have this unhealthy ingredient. ” Also, everything in this article says “it may” so that doesn’t mean it does. Each manufacturer will be different and always read your labels.

        Reply
  6. ROBERT says

    December 23, 2019 at 9:05 am

    It took quite a bit of time for this nutritional yeast crud to destroy me which is why I did not think was the culprit to my problem, major food digestion, so much so got a fissure. But have been taking this crap for almost 2 years. I noticed last week never missing to take after a meal (sometimes skip taking) everyday got worse and of course pain got worse. So have not touched in a few days and this morning was much better. So, this is good, but do not like this pain. Thought it was food, but that proved not the case where eating the same thing everyday proved different results in the end. There are other factors involved (Liver, quit drinking 21/2 years ago) but this nutritional yeast seems to be the answer I have been looking for.

    Reply
    • Teresa says

      December 23, 2019 at 3:38 pm

      Thanks for stopping by. Sorry you’ve been in pain from this, but glad you figured out what it was. Hope each day without it gets better.

      Reply
  7. Emily M says

    May 20, 2019 at 9:47 pm

    SO glad that you shared this! I tried nutritional yeast without really looking into it. A lot of other health-conscious people that I trust were eating it… I looked at the ingredients when I got home and it immediately gave me bad vibes. So I never looked into it, I just finished that container and didn’t buy it anymore.

    Reply
    • Teresa says

      May 21, 2019 at 6:58 am

      Thanks for your feedback! Sounds like your hunch was correct. I was thankful that Dave Asprey with Bulletproof authored this article about the dangers of nutritional yeast. Hopefully more people will learn about the truth of its ingredients.

      Reply

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