Brewer’s Yeast

Used for centuries to make beer, wine and bread, this fermented yeast product also has great benefits loaded with fiber, vitamins and minerals.  Incorporating a little into your diet can help balance your blood sugar, normalize the immune system to helping headaches and improve gut health.

Brewer’s Yeast is:

  • Loaded with vitamins, minerals and protein
  • Supplements fiber, selenium, and B vitamins
  • Improves and aids in digestion
  • Enhances your immune system
  • Increases the milk supply in breastfeeding

Best Brewers Yeast Products

#1 Real Supplements Rated Best in 2020
Brewers Yeast Powder for Lactation to Boost Mother's Milk - Kate Naturals. Brewer's Yeast Powder for Lactation Cookies. Gluten Free & Non-GMO Lactation Supplement. Edible for Dogs & Ducks (12oz)
8,095 Reviews
Brewers Yeast Powder for Lactation to Boost Mother's Milk - Kate Naturals. Brewer's Yeast Powder for Lactation Cookies. Gluten Free & Non-GMO Lactation Supplement. Edible for Dogs & Ducks (12oz)
  • BREWER'S YEAST POWDER DEBITTERED FOR SMOOTHIES - Brewer's Debittered Yeast Powder for lactation cookies, baking & smoothies has little odor. Fresh yeast and brewers yeast powder help increase breast milk supply.
  • BREWERS YEAST POWDER FOR LACTATION COOKIES - Bake lactation cookies to increase milk supply. Brewer's Yeast Powder (levadura de cerveza) has a strong odor so use a tiny amount on your initial batch and adjust. It's similar to brewers yeast tablets.
  • BREWERS YEAST FOR DOGS & FOR DUCKS - Natural tasting powdered brewers yeast without any additives. Our new formula has less odor. Brewer's Yeast (levadura de cerveza en polvo) is edible for ducks, horse, chickens, cats, pets and dogs.
  • LACTATION SUPPLEMENT FOR INCREASED BREAST MILK- Gluten Free Brewers Yeast Powder makes tasty lactation brownies, breastfeeding cookies, lactation cookies for increased breast milk. Mix with milk for a lactation drink or lactation protein powder.
  • We aim to offer the highest quality product.
#2 Real Supplements Rated Best in 2020
Mommy Knows Best Brewer's Yeast Powder for Breastfeeding Support, Gluten-Free, 15 oz
12,362 Reviews
Mommy Knows Best Brewer's Yeast Powder for Breastfeeding Support, Gluten-Free, 15 oz
  • RICH IN ESSENTIAL NUTRIENTS: Brewer's yeast contains a variety of important nutrients, including B vitamins, protein, iron, selenium, and chromium, which are essential for optimal milk production in lactating women.
  • POTENTIAL MILK PRODUCTION SUPPORT: Brewers yeast supplement is believed to stimulate milk production by providing key nutrients, particularly B vitamins, that are involved in hormone production and milk synthesis.
  • ENERGY ENHANCEMENT: Gluten free brewers yeast powder can boost energy levels, which is beneficial for lactating women who experience increased energy demands during the milk production process.
  • NUTRITIOUS SUPPORT FOR LACTATION: As a dietary supplement, brewers yeast debittered offers a range of nutrients that nourish the body and support lactation, making it a valuable addition to a breastfeeding mother's diet.
  • VERSATILE USAGE: Brewers yeast baking can be incorporated into various recipes, such as lactation cookies, brownies, and bars, to enhance milk supply, making it a convenient option for breastfeeding mothers.
#3 Real Supplements Rated Best in 2020
NOW Supplements, Brewer's Yeast Powder with naturally occurring Protein and B-Vitamins, 1-Pound
3,811 Reviews
NOW Supplements, Brewer's Yeast Powder with naturally occurring Protein and B-Vitamins, 1-Pound
  • REDUCED BITTERNESS: After fermentation, the yeast is separated from the beer, roller dried and debittered.
  • SUPER FOOD: Brewer’s yeast has naturally occurring protein and several B-vitamins.
  • GENUINE WHOLE FOOD SUPPLEMENT: Produced by cultivation of Saccharomyces cerevisiae in the production of beer.
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968.
Sale#4 Real Supplements Rated Best in 2020
Solgar Brewer's Yeast Powder, 14 oz - Rich Source of Amino Acids, B-Complex Vitamins, Minerals, & Protein - Natural, Unflavored, Unsweetened - Dairy Free, Vegetarian - 13 Servings (Packaging may vary)
4,147 Reviews
Solgar Brewer's Yeast Powder, 14 oz - Rich Source of Amino Acids, B-Complex Vitamins, Minerals, & Protein - Natural, Unflavored, Unsweetened - Dairy Free, Vegetarian - 13 Servings (Packaging may vary)
  • ALL NATURAL – Solgar Brewer’s Yeast Powder is an all-natural Brewer’s Yeast (Saccharomyces cerevisiae) which is a great source of amino acids, B-Complex Vitamins (B1, B2 & Niacin) as well as other minerals. Premium powder that is unfortified, unflavored, unsweetened and naturally delicious.
  • Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
  • BENEFITS – Brewer’s Yeast supports healthy digestion as well cardiovascular health. It is also used to help promote healthy weight as well as supports lactation in nursing mothers.
  • SUITABLE FOR VEGETARIANS – Powder is vegan, non-GMO and is free of Soy, artificial flavors, sweeteners, dairy, preservatives and colors.
  • HOW IT’S MADE – Unlike most Brewer’s yeast which is derived from the fermentation of beer with the addition of hops which can impart a bitter taste and odor, Solgar Brewer’s Yeast is produced from beet molasses under carefully controlled conditions. After the fermentation process, the yeast is collected and dried using special techniques to preserve the yeast’s vitamin, protein and mineral content.
Sale#5 Real Supplements Rated Best in 2020
Brewers Yeast, 3lbs Powder | Debittered, Unflavored, Unsweetened | Lactation Milk Supply Support | Great for Lactation Cookies, Snacks, & Tea | Rich Vitamin B Complex & Protein Source | Non-GMO
1,246 Reviews
Brewers Yeast, 3lbs Powder | Debittered, Unflavored, Unsweetened | Lactation Milk Supply Support | Great for Lactation Cookies, Snacks, & Tea | Rich Vitamin B Complex & Protein Source | Non-GMO
  • Micro Ingredients offers raw Brewers Yeast Powder in a 3 pound bulk supply, each 2 scoop serving provides approximately 15g, totaling 90 servings per pouch.
  • Enjoy Brewers Yeast that is debittered, unfortified, unflavored, and unsweetened, offering a pleasant mild taste without using any additives or fillers.
  • Rich in vitamins, minerals, and protein, this nutrient-dense Brewers Yeast Powder supports lactation milk production for mothers, making it an excellent ingredient for lactation cookies, snacks, teas, or any of your favorite recipes.
  • Debittered Brewers Yeast refers to a form of Brewers Yeast that has undergone a process to remove the bitter taste typically associated with the yeast, making it more palatable for a variety of uses.
  • Non-GMO ingredients, free of soy, dairy, gluten, fillers, preservatives, flavors, and tree nuts. 3rd party lab tested to provide a product that is safe, pure, and potent.
#6 Real Supplements Rated Best in 2020
It's Just - Brewers Yeast Powder, Keto Baking, Sourdough Bread, Boost Mother's Milk, Make Lactation Cookies, 10oz
2,624 Reviews
It's Just - Brewers Yeast Powder, Keto Baking, Sourdough Bread, Boost Mother's Milk, Make Lactation Cookies, 10oz
  • Brewers Yeast Powder / A byproduct of brewing beer but can be used for many different medicinal and nutritional purposes! Is rich in B- Complex Vitamins, protein, iron, and Chromium. It is used to treat both digestive and respiratory problems!
  • Lactation Support / So rich in nutrients that it is used as a supplement for breast feeding mothers to support lactation and produce more milk! Use it in cookies, muffins, oatmeal, and smoothies!
  • Boost Energy & Mood / Because Brewer’s Yeast is packed with protein, iron, and B Vitamins, lactating mothers are advised to take it as dietary supplement. Not only does it support lactation, but it boosts energy levels and mood, and fights fatigue, all of which are effects of breast feeding!
#7 Real Supplements Rated Best in 2020
Anthony's Brewer's Yeast, 1 lb, Made in USA, Gluten Free, For Lactation Support, Unflavored, Unsweetened
157 Reviews
Anthony's Brewer's Yeast, 1 lb, Made in USA, Gluten Free, For Lactation Support, Unflavored, Unsweetened
  • Anthony's Brewer's Yeast Powder - for lacatation to boost mother's milk supply
  • Batch Tested and Verified Gluten Free, Product of USA
  • Great for baking lacatation cookies to boost nursing mother's milk supply!
  • Debittered, Unflavored, Unsweetened, Unfortified
  • Use Brewer’s Yeast Powder by sprinkling it on cereals and salads, adding it to baked goods, soups, and sauces, or blending it into smoothies!
#8 Real Supplements Rated Best in 2020
NOW Foods Brewer's Yeast 650 mg 200 Tabs
1,316 Reviews
NOW Foods Brewer's Yeast 650 mg 200 Tabs
  • Brewers yeast 10 grain 200 tabs by now foods
  • NOWSUPPVitamin-Brewers Yeast/Nutritional Flakes- 200TABS
  • Now foods product upc: 733739024107
#9 Real Supplements Rated Best in 2020
Legendairy Milk Brewer's Yeast Powder for Lactation Cookies (16oz) - Increase Breast Milk Supply - Debittered, Unflavored, Non-GMO & Gluten Free Lactation Supplement for Breastfeeding Support
27 Reviews
Legendairy Milk Brewer's Yeast Powder for Lactation Cookies (16oz) - Increase Breast Milk Supply - Debittered, Unflavored, Non-GMO & Gluten Free Lactation Supplement for Breastfeeding Support
  • ✅ 𝐁𝐑𝐄𝐖𝐄𝐑𝐒 𝐘𝐄𝐀𝐒𝐓 𝐏𝐎𝐖𝐃𝐄𝐑 𝐅𝐎𝐑 𝐋𝐀𝐂𝐓𝐀𝐓𝐈𝐎𝐍 𝐒𝐔𝐏𝐏𝐎𝐑𝐓: Legendairy Milk Brewers Yeast Powder is a 100% natural galactagogue that helps moms increase breast milk supply. Packed with bioactive Vitamin B, fiber, protein, iron, and other beneficial minerals for daily wellness support.
  • ✅ 𝐌𝐀𝐊𝐄 𝐋𝐀𝐂𝐓𝐀𝐓𝐈𝐎𝐍 𝐂𝐎𝐎𝐊𝐈𝐄𝐒 𝐅𝐎𝐑 𝐈𝐍𝐂𝐑𝐄𝐀𝐒𝐄𝐃 𝐁𝐑𝐄𝐀𝐒𝐓𝐌𝐈𝐋𝐊: Our Brewer’s Yeast is mild tasting and is great for making yummy lactation cookies, lactation brownies, and other treats. Mix into smoothies for a lactation drink, throw into some hearty overnight oats, or use it as an addition to your favorite lactation snacks!
  • ✅ 𝐃𝐄𝐁𝐈𝐓𝐓𝐄𝐑𝐄𝐃 𝐁𝐑𝐄𝐖𝐄𝐑𝐒 𝐘𝐄𝐀𝐒𝐓 - 𝐌𝐈𝐋𝐃 𝐏𝐋𝐄𝐀𝐒𝐀𝐍𝐓 𝐅𝐋𝐀𝐕𝐎𝐑: Naturally debittered and non-GMO, Legendairy Milk Brewers Yeast Powder is formulated specifically for breastfeeding moms in need of a milk supply increase. Take 1 heaping tablespoon every day to help increase breastmilk supply. Unlike others on the market, our brewer’s yeast powder has a mild nutty flavor and none of the bitterness!
  • ✅ 𝐆𝐎𝐎𝐃 𝐒𝐎𝐔𝐑𝐂𝐄 𝐎𝐅 𝐏𝐑𝐎𝐓𝐄𝐈𝐍, 𝐅𝐈𝐁𝐄𝐑 & 𝐕𝐈𝐓𝐀𝐌𝐈𝐍 𝐁: Our gluten free Brewers Yeast Powder is higher in fiber than most other products out there, plus it’s a good source of the bioavailable B vitamin thiamine and protein. This wide spectrum of nutrients makes our Brewer’s Yeast (levadura de cerveza en polvo) a nutritious addition to a lactating mom’s diet.
  • ✅ 𝐅𝐑𝐎𝐌 𝐓𝐇𝐄 𝐁𝐑𝐀𝐍𝐃 𝐌𝐎𝐌𝐒 𝐓𝐑𝐔𝐒𝐓, 𝐋𝐄𝐆𝐄𝐍𝐃𝐀𝐈𝐑𝐘 𝐌𝐈𝐋𝐊: Trusted by millions of moms around the world, Legendairy Milk was founded by a mom to support you on your motherhood journey. Should you have any questions or concerns with your Brewer’s Yeast Powder purchase, please reach out to us so we can take care of you.
#10 Real Supplements Rated Best in 2020
Earthborn Elements Brewer’s Yeast 1 Gallon Bucket, Pure & Undiluted, Inactive Yeast
38 Reviews
Earthborn Elements Brewer’s Yeast 1 Gallon Bucket, Pure & Undiluted, Inactive Yeast
  • Earthborn Elements Brewer’s Yeast Powder in a resealable bucket
  • Brewer’s Yeast is a natural inactive yeast considered to be a superfood
  • Add to smoothies, shakes & more
  • Pure & Undiluted: Never any additives or fillers
  • Packaged in USA
#11 Real Supplements Rated Best in 2020
Lewis Labs Brewer's Yeast Flakes | Beer Yeast is A Rich Source of Amino Acids, B-Complex Vitamins, Minerals & Protein | Our Pure Bakers Yeast is Vegan, Keto, Paleo Friendly | Unsweetened, 2 Pack
219 Reviews
Lewis Labs Brewer's Yeast Flakes | Beer Yeast is A Rich Source of Amino Acids, B-Complex Vitamins, Minerals & Protein | Our Pure Bakers Yeast is Vegan, Keto, Paleo Friendly | Unsweetened, 2 Pack
  • ONLY BREWER'S YEAST WITH FOLATE: Our brewers yeast powder is the only one that contains Folate, the natural form of folic acid. Folate (Vitamin B9) helps bodies make new proteins, support red blood cell growth, and more. It's a popular supplement during pregnancy.
  • LOOKING FOR A NATURAL BOOST IN ENERGY LEVELS?: If so, this amino energy powder is an excellent choice. It's naturally packed with B vitamins, protein, and trace minerals, so it help boost energy levels, muscle development, and recovery from workouts and training.
  • YES, THIS NATURAL PROTEIN POWDER IS GLUTEN-FREE: Most brewer's yeast products are grown on a medium of corn or other grain, so it's not suitable for paleo, keto, or celiac diets. Lewis Labs Brewer’s Yeast is not, so it's gluten-free.
  • SUPPLEMENTS PROUDLY MADE IN THE USA: All of the premium supplements we create are sourced and made in the USA from the finest ingredients. We never cut corners. It’s one the reasons customers have trusted our supplements since 1973.
  • WE STAND BEHIND ALL OF OUR PRODUCTS: When you order today, rest assured knowing that your order is backed by a 30 day money back guarantee. If you’re not satisfied, we’ll take the supplement back for a full refund. No questions asked.
#12 Real Supplements Rated Best in 2020
Josh's Frogs Animal Grade Brewer's Yeast (5 lbs)
858 Reviews
Josh's Frogs Animal Grade Brewer's Yeast (5 lbs)
  • HIGH QUALITY Brewer’s Yeast used in Josh’s Frogs Fruit Fly Cultures now available to be used for your homemade Fruit Fly media. NOT FOR HUMAN CONSUMPTION
  • EXTREMELY NUTRITIOUS with B-vitamins, protein, omega fatty acids, antioxidants, and trace minerals so that you can raise healthy, nutritious feeders for your pets
  • EXTRA PROTEIN, a great source of vital amino acids, to encourage growth and booming cultures
  • CATS, DOGS, and CHICKENS, can also benefit from Brewer’s Yeast in small amounts as a feed additive* READ PRODUCT DESCRIPTION
  • The color of this product can vary slightly. We have tested this product and the color does not change the quality of the brewer's yeast.
#13 Real Supplements Rated Best in 2020
Carlyle Brewers Yeast Tablets with Vitamin B12 | 500 Count | 1500mg | Non-GMO & Gluten Free
209 Reviews
Carlyle Brewers Yeast Tablets with Vitamin B12 | 500 Count | 1500mg | Non-GMO & Gluten Free
  • BREWER'S YEAST: Nutrient packed - a source of naturally occuring B-Vitamins & Trace Minerals
  • VEGETARIAN FORMULA: Delivers 1,500 mg of Brewer's Yeast per serving in vegetarian tablets
  • ROOTED IN WELLNESS: Carlyle provides premium, honest supplements in your pursuit to healthy living
  • CARLYLE MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
  • NATURALLY FREE OF: Wheat, Milk, Lactose, Soy, Artificial Flavor, Preservatives & Non-GMO
Sale#14 Real Supplements Rated Best in 2020
Nutricost Brewers Yeast Powder 1LB (16oz) - Non-GMO, Vegetarian Friendly
761 Reviews
Nutricost Brewers Yeast Powder 1LB (16oz) - Non-GMO, Vegetarian Friendly
  • Premium Nutritional Brewer's Yeast
  • Convenient Serving Scoop Included
  • Great Source of Protein and Minerals
  • Non-GMO, Gluten Free, 3rd Party Tested
  • Made in a GMP Compliant, FDA Registered Facility
Sale#15 Real Supplements Rated Best in 2020
Solgar Brewer's Yeast 7 ½ Grains with Vitamin B12 - 250 Tablets - Non-GMO, Vegan, Dairy Free, Kosher - 41 Servings
1,462 Reviews
Solgar Brewer's Yeast 7 ½ Grains with Vitamin B12 - 250 Tablets - Non-GMO, Vegan, Dairy Free, Kosher - 41 Servings
  • Brewer’s Yeast Tablets; Solgar Brewer’s Yeast is derived from wheat and barley fermentation.
  • With Vitamin B12; This formulation includes B-complex vitamins including vitamin B12 as cyanocobalamin.
  • Suitable for Vegans; Solgar Brewer’s Yeast Tablets are non-GMO, vegan, kosher, and free of: dairy, sugar, artificial flavors, artificial sweeteners, artificial preservatives, and artificial colors.
  • The Gold Standard; For over 75 years, Solgar has been committed to quality, health, and well-being. Our mission is to create the finest nutritional supplements in small batches, through tireless research, using only the finest raw materials
  • English (Publication Language)
#16 Real Supplements Rated Best in 2020
Fresh Eggs Daily Brewer's Yeast with Garlic Powder and Niacin for Ducks Ducklings Feed Supplement Vitamins for Backyard Chickens 5LB
458 Reviews
Fresh Eggs Daily Brewer's Yeast with Garlic Powder and Niacin for Ducks Ducklings Feed Supplement Vitamins for Backyard Chickens 5LB
  • NATURAL SOURCE OF NIACIN: Provides Niacin (Vitamin B3) for Ducks and Chickens
  • RESPIRATORY HEALTH: Supports respiratory and immune system health
  • STRONG BONES: Essential for proper development and bone growth in ducklings
  • DIGESTIVE AID: Provides digestive system support
  • REDUCES ODORS: Reduces the odor of manure
#17 Real Supplements Rated Best in 2020
Brewer's Yeast with Organic Oregano & Garlic | Niacin for Ducks, Chickens | Chicken Probiotic | Brewers Yeast for Ducks with B12, B6, & Amino Acids by Pampered Chicken Mama
162 Reviews
Brewer's Yeast with Organic Oregano & Garlic | Niacin for Ducks, Chickens | Chicken Probiotic | Brewers Yeast for Ducks with B12, B6, & Amino Acids by Pampered Chicken Mama
  • Mix with Duck Starter Feed: Brewer's Yeast With Organic Oregano & Garlic is a niacin powder for ducks supplement with easy to understand ingredients: Just brewer yeast and herbs! No fillers added.
  • A Necessary Addition to Every Duckling Supplies Kit: Formulated by experts and verified by independent labs to provide extra nutrients and vitamins. Add 1 tablespoon per chicken or duckling to daily feed ration or add one 20 ounce container to 40 - 50 pounds of feed.
  • Add to Duckling Food and Chicken Feed as a Poultry Booster: Brewer's Yeast With Organic Oregano & Garlic is fortified with crucial vitamins for chickens such as Niacin (B3), Vitamin B6, and B12.
  • Made with Herbs like garlic and oregano so your chickens & ducks have 24 hour access to healthy, beneficial herbs. Can be safely mixed with other Pampered Chicken Mama chicken probiotics, duck feed, chicken vitamins and supplements, and kelp for chickens.
  • Helps Chickens & Ducks Grow & Maintain Strong Bones, Beaks, & Bills: Probiotics for chickens are a good way to make sure your flock has great gut flora. Pampered Chicken Mama’s Brewer's Yeast With Organic Oregano & Garlic can be fed to day old chicks and ducklings to promote healthy digestion and to adult chickens and ducks as an egg booster.
#18 Real Supplements Rated Best in 2020
Bluebonnet Nutrition Super Earth Brewers Yeast Powder, Super Food, Whole Food, Source for Vitamins, Great Tasting, Vegan, Vegetarian, Non GMO, Gluten Free, Soy Free, Milk Free, Kosher, 1 lb
770 Reviews
Bluebonnet Nutrition Super Earth Brewers Yeast Powder, Super Food, Whole Food, Source for Vitamins, Great Tasting, Vegan, Vegetarian, Non GMO, Gluten Free, Soy Free, Milk Free, Kosher, 1 lb
  • Contains Unflavored, Unsweetened, Unfortified, Non-GMO Brewer's Yeast Powder that is Carefully Grown on Non-GMO Sugar Beet Molasses
  • Nutritional Support ♦
  • 1 lb Powder, 15 Servings
  • Soy-Free, Gluten-Free, Non-GMO Project Verified, Kosher Certified, Dairy-Free, Vegan
  • Free of milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat and soybeans. Also free of corn, gluten, barley and rice.
#19 Real Supplements Rated Best in 2020
Amazing Formulas Brewers Yeast 1500mg Per Serving 240 Tablets Supplement | Non-GMO | Gluten Free | Made in USA
1,805 Reviews
Amazing Formulas Brewers Yeast 1500mg Per Serving 240 Tablets Supplement | Non-GMO | Gluten Free | Made in USA
  • Brewers Yeast 1500mg Per Serving Supplement
  • 80 Servings per Bottle, 3 Tablets Per Serving
  • Non-GMO, Gluten Free, Third Party Tested
  • Manufactured in accordance with GMP Standards
  • Proudly made in the USA with Guaranteed Purity & Potency
Sale#20 Real Supplements Rated Best in 2020
FAMILY FARM AND FEED | Brewers Yeast | Animal and Pet | Young and Adult | Granular | 4 Pounds
661 Reviews
FAMILY FARM AND FEED | Brewers Yeast | Animal and Pet | Young and Adult | Granular | 4 Pounds
  • 🍺NATURAL SOURCE: Vitamin E, Biotin, Choline, Folic, Niacin, Thiamine, Pyridoxine, Riboflavin, Pantothenic, Lysine, Histidine, Threonine, Leucine, Selenium, Manganese, Iron, Omega Fatty Acid
  • 🍺TASTY: Your pets and your soil will love the taste of our yeast
  • 🍺MUST HAVE: For picky eaters like your dog or livestock and feed the soil microbes in your gardens and house plants
  • 🍺WHAT YOU GET: Clear package of 4 pounds of Brewers Yeast with label
  • 🍺WE MAKE IT RIGHT: Not only can you rest assured that all of our products are covered by Amazon’s Return Policy, on the Farm, we will always stand by our products

Brewer’s Yeast Explained: Beer to Benefit

Loose weight, improve your sleep, help your allergies and improve your immune system with beneficial yeast.  This tiny, single-celled fungus comes from the brewing beer. Surprisingly, this bi-product has shown many benefits from insomnia to improving breast milk production.

  • Loaded with vitamins, minerals and protein
  • Supplements fiber, selenium, and B vitamins
  • Improve and aid in digestion
  • Enhance your immune system
  • Increase the milk supply in breastfeeding

Benefits of Brewer’s and Nutritional Yeasts
1) Brewer’s Yeast is Beneficial for Type 2 Diabetes
Brewers yeast is naturally rich in glucose tolerance factor (GTF), a compound that contains a biologically-active form of chromium [R].

GTF decreased blood sugar, triglyceride, and LDL (“bad”) cholesterol levels and increased levels HDL (“good”) cholesterol in diabetic rats and humans with type 2 diabetes [R].

It also prevents kidney and eye damage in diabetic animals [R].

Glucose tolerance factor achieves these effects by mimicking insulin. It can:

activate proteins involved in insulin signaling pathways [R]
enhance glucose transport [R]
promote glycogen storage [R]

Glucose tolerance factor also enhances the activity of insulin by helping it bind to cells [R,R].

2) Brewer’s and Nutritional Yeast Help with Weight Loss
In a study (DB-RCT) of 54 obese men and women, brewer’s yeast reduced body weight and stomach fat without any negative effects on lean body mass [R].

These results coincide with data from previous animal and human studies (DB-RCT) showing decreased body weight and body fat after yeast supplementation [R, R].

Yeast (from S.cerevisiae) reduces the hunger hormone ghrelin in mice, which may partly explain the loss in body weight [R, R].

It also decreases fat production by reducing the activity of liver enzymes required for making fatty acids [R].

In addition, nicotinamide riboside (found in brewer’s and nutritional yeast) increases enzymes involved in fat burning (sirtuins) and energy usage, thereby increasing weight loss [R].

3) Brewer’s and Nutritional Yeasts May Prevent Heart Disease

A diet rich in brewer’s or nutritional yeasts may lower the risk of heart disease by improving cholesterol and blood pressure levels [R, R, R].

Brewer’s and nutritional yeasts contain many cholesterol-lowering vitamins and minerals:

Beta-glucans [R]
Niacin (which also increases HDL levels) [R]
Nicotinamide riboside [R]
Glucose tolerance factor (only in Brewer’s yeast) [R]
Consuming brewer’s yeast daily lowered LDL cholesterol and triglyceride levels and increased HDL cholesterol in type 2 diabetic patients with high blood cholesterol [R].

Aside from lowering cholesterol, brewer’s yeast also reduces blood pressure. One study (DB-RCT) in 90 adults with type 2 diabetes found that brewer’s yeast significantly lowered both diastolic and systolic blood pressure [R].

The high amounts of potassium, magnesium, and calcium in brewer’s and nutritional yeasts may explain this reduction in blood pressure. According to some studies, a greater intake of these minerals can reduce the risk of high blood pressure, heart disease, and stroke [R, R].

Brewer’s and nutritional yeasts also contain proteins that help decrease blood pressure by decreasing the activity of angiotensin-converting enzyme (ACE). A higher activity of this enzyme is linked to high blood pressure [R, R, R].

4) Brewer’s and Nutritional Yeasts are Good for the Gut
S. cerevisiae helps promote optimal gut function by:

Clearing away bad bacteria while supporting good bacteria [R, R, R, R, R, R]
Preventing harmful bacteria and fungal toxins from sticking to the intestines [R, R, R, R, R]
Aiding nutrient absorption by increasing gut surface area [R, R]
Breaking down phytate, which increases the absorption of minerals like iron, zinc, calcium, and magnesium [R, R, R]
Preserving gut barrier integrity [R, R, R]
Decreasing inflammation [R]
Fighting infections [R]
Many of these effects are mediated by the presence of prebiotics and probiotics in S.cerevisiae (i.e. beta-glucans and mannan oligosaccharides as well as nucleotides [R, R, R].

Because of this, S.cerevisiae may help treat some gut diseases.Brewer’s yeast improved the outcome of C. difficile-associated diarrhea in animals and humans [R, R].

S.cerevisiae also eased stomach pain and discomfort in patients with irritable bowel syndrome (IBS) disease in one study (DB-RCT) [R].

However, Saccharomyces boulardii is the only variant of S. cerevisiae currently approved for probiotic use in humans because of its clinical effectiveness in treating diarrhea and other gut disorders [R, R].

5) Brewer’s and Nutritional Yeast Boost the Immune System
Beta-glucans (sugars found in the cell walls of yeast, bacteria, and fungi) can activate the immune system and boost immune response [R].

These sugars enhance the function of the main cells in the innate immune system including macrophages, neutrophils, and natural killer cells [R].

Beta-glucans bind to specific receptors on these cells, initiating a wide variety of beneficial immune responses (e.g., anti-inflammatory cytokine production) [R].

However, not all beta-glucans are equal. Beta-glucans derived from different sources have unique structures that result in different effects [R].

Research indicates that beta glucans from yeast (i.e., beta-1–3-glucan) have the greatest capacity to activate the immune system [R].

Beta-glucans derived from S.cerevisiae have shown promising results including:

Reduced incidence of bacterial, viral, and fungal infection in mice and humans [R, R, R, R]
Decreased allergy symptoms in mice and humans [R, R, R]
Reduced occurrence of post-operative infection in animals and humans [R]
Decreased inflammation and faster wound healing in animals and humans [R, R, R]
Reduced rate of cancer tumor size and growth in animals [R]
Increased regeneration of white blood cells after radiation in mice [R]
Decreased inflammation in mouse models of arthritis [R]
6) Brewer’s and Nutritional Yeasts have Anti-Cancer Effects
Brewer’s and nutritional yeasts contain ergosterol, a compound that inhibits the growth of human breast cancer cells [R].

One study found that S.cerevisiae killed breast cancer cells by causing programmed cell death (apoptosis) [R].

Brewer’s and nutritional yeasts are excellent sources of selenium, a mineral that has anti-cancer effects [R].

7) Brewer’s and Nutritional Yeasts May Enhance Energy Levels and Improve Mood
S.cerevisiae is a natural dietary source of nucleotides. Nucleotides enhanced endurance and post workout recovery in athletes (DB-RCT), indicating that brewer’s and nutritional yeast may be used to reduce fatigue [R, R].

Patients with chronic fatigue syndrome are often deficient in many nutrients, which can worsen symptoms. A nutritional supplement based on brewer’s yeast (Nagipol) improved cognitive function and mood in chronic fatigue syndrome patients. These effects suggest that brewer’s yeast may be a useful treatment for this disorder [R, R].

Brewer’s and nutritional yeast contains lithium, an element traditionally used to treat mood disorders. Naturally lithium-rich brewer’s yeast improved mood in former drug users (DB-RCT) [R].

8) Brewer’s and Nutritional Yeasts May Promote Healthy Skin
Cosmetic products containing S.cerevisiae extract improved skin moisture, brightness, and smoothness in volunteers [R].

These effects likely stem from the abundant amount of proteins, beta-glucans, vitamins and minerals in S.cerevisiae that have wound healing, hydrating, and antioxidant properties [R, R, R].

9) Brewer’s and Nutritional Yeasts May Improve Brain Health and Cognitive Function
Brewer’s and nutritional yeast are natural sources of nicotinamide riboside, a form of vitamin B3 that is a precursor to nicotinamide adenine dinucleotide (NAD) [R].

Nicotinamide riboside can safely raise levels of NAD in animals and humans [R].

Higher levels of NAD protect nerve cells and may prevent neurodegenerative disease [R, R].

Increasing NAD levels with nicotinamide riboside restored cognitive function in a mouse model of Alzheimer’s disease [R].

In addition, nicotinamide riboside slowed axonal degeneration in cells by stimulating NAD pathways. Preventing axonal damage can help preserve brain cells after injury [R].

10) Brewer’s and Nutritional Yeast May Protect Against Hearing Loss

Nicotinamide riboside, a form of vitamin B3 found in brewer’s and nutritional yeasts, prevented noise-induced hearing loss in mice. It reduced nerve cell damage caused by noise exposure [R].

11) Brewer’s and Nutritional Yeasts May Promote a Healthy Pregnancy
S.cerevisiae is a rich dietary source of folate, a vitamin that helps prevent major birth defects [R, R].

Oxidative stress is a major factor in preeclampsia, a pregnancy disorder that results in complications to the mother and fetus. S. cerevisiae reduced oxidative stress in maternal cord red blood cells, indicating that it may be useful in reducing oxidative damage to the pre-eclamptic fetus [R, R].

12) Brewer’s Yeast Alleviates Premenstrual Syndrome
Brewer’s yeast in combination with vitamins and minerals relieved premenstrual pain in 40 patients with mild to moderate premenstrual syndrome [R].

13) Brewer’s and Nutritional Yeast Have Anti-Aging Properties
Nicotinamide riboside (which is found in brewer’s and nutritional yeast) extended the lifespan of yeast by increasing NAD synthesis and sirtuin activity [R].

It also promoted longevity in mice by improving mitochondrial function. Mitochondrial dysfunction is a key component in aging [R, R].

14) Brewer’s and Nutritional Yeasts May Improve Thyroid Function
Brewer’s and nutritional yeasts are good sources of selenium, a mineral essential for thyroid gland function and thyroid hormone production. Selenium supplementation decreases anti-thyroid antibody levels in patients with Hashimoto’s disease [R, R, R].

Selenium treatment also restores thyroid gland function in Grave’s disease patients [R, R].

15) Brewer’s and Nutritional Yeasts May Promote Fertility
Brewer’s and nutritional yeast contain zinc, a mineral critical for male reproductive health. Increasing zinc levels in infertile men improves sperm count, quality of sperm, and male fertility [R, R].


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