Lewis Labs
Brewer's YeastFlakes



After an extensive worldwide search, Lewis Laboratories International, Ltd. has finally found high quality, 100% natural, non GMO, gluten free, non-fortified, 100% pure yeast flakes that actually taste good. 

We all know how nutrients in vegetables and fruits vary depending on the soil in which they are grown. Take Idaho potatoes for instance - famous for being the best.   Why is that?   Because the nutrients in the soil are not found anywhere else.  Previously, our famous brewer’s yeast products were grown in Croatia where the soil is very rich in nutrients. Unfortunately, the supplier no longer produces yeast from their sugar beets. As a result, we searched the world for a replacement and have found the very best natural yeast from sugar beets that live up to our very high standards.

If Lewis Labs 100% Pure Premium Imported Brewer's Yeast™ Flakes are not part of your daily nutritional habit, they should be.  Brewer's yeast is one of the most perfect foods known.  Loaded with proteins, minerals and vitamins, it is amazing how much food value is packed into even a small amount. It provides the protein you want without the extra calories and cholesterol you do not. Since it is low in fat, carbohydrates, sodium and calories, it is especially useful for dieters and vegetarians. In fact, it seems to have a bounty of nutritional goodness for just about everybody.

Lewis Labs 100% Pure Premium Imported Yeast™ Flakes are derived from plant and microbial sources (the inactivated yeast strain, Saccharomyces cerevisiae, commonly referred to as brewer's yeast) and is nutritionally superior to ordinary types of yeast.  It is one of the best natural sources of the entire B vitamin complex. It is a superb source of concentrated protein including all the essential amino acids. In fact, brewer's yeast contains about ten times as much protein as the same amount of whole-wheat flour.

It is extraordinarily rich in nucleic acid, which is a essential element of cell development and is believed to have benefits on the aging process.  It is also rich in potassium and many other factors too numerous to mention.  All are in a form that is most available for immediate use by the body. With these nutritional credentials, why doesn't everybody take brewer's yeast every day? The answer is many people simply do not like the taste of ordinary brewer’s yeast products.

Lewis Laboratories has discovered and imported a truly unique brewer's yeast.  Not only does it taste good, but it has higher protein content and is richer in nutritional content than any other natural, non-fortified brewer's yeast product on the market. It is neither 'doctored' nor blended.  Absolutely nothing has been added to this 100% natural product.

How can pure, unbleached, untreated brewer's yeast taste so good? Of course, there is a reason. Most ordinary brewer's yeast is recovered after use in the brewing process. It is grown in vats containing grain, malt and hops. As the yeast feeds on this culture medium, it produces alcohol while it absorbs nutritional factors from the medium. At the same time, the yeast picks up chemicals and other undesirable materials. Although it goes through a debittering process designed to remove the contaminating oils, which are mostly lupulins giving it the bitterness, the recovered end product is less than desirable in taste. This debittering process also results in the loss of some protein (amino acids), minerals and trace elements from the product.

Unlike ordinary brewer's yeast, Lewis Labs' 100% Pure Premium Imported Brewer's Yeast™ is primary yeast grown on sugar beet molasses.   Derived from the sugar beets is an abundant spectrum of nutrients.   Sugar beets are known to absorb so much out of the soil (minerals, metals, trace elements, etc.) that they can only be grown in one field for two years without depleting the soil. 

Like our original yeast products, the Lewis Laboratories 100% Pure Premium Imported Brewer's Yeast™ Flakes process does not involve malt, hops and bitters etc.  It is drum-dried at very low heat (no higher than 60° C).  It has a clean, nutty taste and great nutritional value derived from the sugar beets.  It is a 100% pure and natural product.  The culture medium on which the yeast is grown is most important since it is from this medium that the minerals, metals and vital micronutrients are derived.  

We have done extensive testing and our lab has confirmed that our Brewer's Yeast retains a protein content of 45%-50% and a nucleic acid content of 6%-8%. It also contains approximately 3%-4% natural RNA/DNA from nucleotides.

It is important to note that brewer’s yeast is not related to the Candida albicans fungus, which can cause a yeast infection.

At the recommended serving size of 25 grams (3 level tablespoons) one can will last two weeks. 

Lewis Labs Brewer’s Yeast™ Flakes are kosher, parve and halal.

Lewis Labs Brewer’s Yeast™ Flakes are available in 12.35 oz. (350 grams) containers which are sold by weight, not volume.  Some settling may occur.

Lewis Labs Brewer's Yeast™ Flakes are sold under no other name or label.

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Better than all the rest

I have been using Lewis labs Brewers Yeast since the 1970s, when a friend told me about it and said that it is the best tasting yeast ever. I put Lewis Labs Brewers Yeast in my falafel recipe and is is delicious and healthy. It was hard to find for awhile but i am glad it is back. I love it. Please don't publish my name and email on your website.

Ronald K.
United States

Nothing but good news

The yeast came on time and the shipping was free! I’ve used that stuff for years and am glad to have it back.


Simply The Best!

I was so happy when this product was brought back and available to purchase online! No more Amazon or other places! This Brewer's Yeast is amazing. If you read the labels of the other Brewer's Yeast products and understand "why" this is the best, you'll never buy anything else.

Susan H.
United States

My Cats Like it!

I buy this to sprinkle on my cats food to stimulate their appetite, They get bored with their wet food and this keeps them eating it. They sit in front of their food and stare up at me until they get their “sprinkles.” They love it! Smart cats!

Eugenia L.
United States


the best quality on the market, worth the money