Evidence supporting the use of: Brewer's Yeast
For the body system: Nails

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Table of Contents

Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Brewer's Yeast is traditionally used as a supplement to support the health of hair, skin, and nails. This use is largely based on the nutrient content of Brewer's Yeast, which is a rich source of B vitamins (such as biotin, riboflavin, niacin, and folic acid), protein, and trace minerals like selenium and zinc. Biotin, in particular, is well-known for its role in maintaining nail health and strength, and Brewer's Yeast naturally contains this vitamin, although in varying amounts depending on the production process.

Historically, Brewer's Yeast has been promoted as a “beauty food” in traditional naturopathic and holistic health literature, where it is often recommended to improve brittle nails and support overall nail growth. However, while there is some scientific evidence that biotin supplementation can help strengthen nails, there is limited direct clinical research on Brewer's Yeast itself for nail health in humans. Most of the support is therefore extrapolated from its nutrient profile and the recognized roles of those nutrients in nail physiology, rather than rigorous clinical trials on Brewer's Yeast as a specific intervention for nail health.

In summary, the use of Brewer's Yeast to support the nails is justified mainly by tradition and its nutrient content, with indirect scientific support but little direct evidence.

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