Brewer's yeast

Brewer's yeast (Saccharomyces cerevisiae) is a byproduct of beer brewing and a valuable source of various nutrients. It is used both as a dietary supplement and for medicinal purposes. Brewer's yeast is rich in B vitamins, proteins, minerals, and fiber and is traditionally used to promote general health and to provide support for various complaints.

What benefits does Brewer's yeast offer?

Brewer's yeast offers a variety of potential health benefits, which can be attributed to its rich nutrient composition:

  • Promoting gut health: Brewer's yeast is frequently used to treat diarrhea and other digestive problems. It contains fiber and probiotics, which in studies have contributed to supporting a healthy gut flora (1,2,3,4).
  • Strengthening the immune system: The active compounds contained in Brewer's yeast have immunomodulating properties that can strengthen the immune system. (1,2,5)
  • Supporting skin health: Thanks to its high content of B vitamins, Brewer's yeast could contribute to improving skin health (6)
  • Promoting energy production: The B vitamins in Brewer's yeast play an important role in energy metabolism and can help reduce tiredness and fatigue. (7)

How does Brewer's yeast work?

The health effects of Brewer's yeast can be attributed to its diverse bioactive compounds:

  • B vitamins: Support numerous metabolic processes, including energy production (6,7).
  • Beta-glucans: These polysaccharides have immunomodulating and anti-inflammatory properties (5).
  • Chromium: A mineral that contributes to the regulation of blood sugar levels and can improve insulin sensitivity (8).
  • Amino acids: Brewer's yeast contains all essential amino acids.

Side effects and risks

Although Brewer's yeast offers many health benefits, side effects can occur in some people:

  • Digestive problems: In some cases, the consumption of Brewer's yeast can lead to bloating, gas formation, or stomach discomfort.
  • Allergic reactions: People with a yeast allergy should avoid Brewer's yeast, as it can trigger allergic reactions.
  • Interactions with medications: Brewer's yeast can influence the effect of certain medications, especially monoamine oxidase inhibitors (MAO inhibitors), and should be used with caution.

Conclusion

Brewer's yeast is a versatile dietary supplement with a variety of potential health benefits. It is a rich source of nutrients that can contribute to promoting general health. As with any dietary supplement, the use of Brewer's yeast should be weighed individually and, in case of doubt, discussed with a doctor or nutritionist.

Sources

  1. Hemarajata P, Versalovic J. Effects of probiotics on gut microbiota: mechanisms of intestinal immunomodulation and neuromodulation. Therap Adv Gastroenterol. 2013 Jan;6(1):39-51. doi: 10.1177/1756283X12459294. PMID: 23320049; PMCID: PMC3539293.
  2. Wang X, Zhang P, Zhang X. Probiotics Regulate Gut Microbiota: An Effective Method to Improve Immunity. Molecules. 2021 Oct 8;26(19):6076. doi: 10.3390/molecules26196076. PMID: 34641619; PMCID: PMC8512487.
  3. Brock S. What is Fiber and Why is it Important for the Microbiome? (2014) Stanford Lifeststyle Medicine, https://longevity.stanford.edu/lifestyle/2024/04/08/what-is-fiber-and-why-is-it-important-for-the-microbiome/#:~:text=Studies%20show%20that%20getting%20enough,including%20colon%20and%20breast%20cancer.
  4. Fu J, Zheng Y, Gao Y, Xu W. Dietary Fiber Intake and Gut Microbiota in Human Health. Microorganisms. 2022 Dec 18;10(12):2507. doi: 10.3390/microorganisms10122507. PMID: 36557760; PMCID: PMC9787832.
  5. Zhong X, Wang G, Li F, Fang S, Zhou S, Ishiwata A, Tonevitsky AG, Shkurnikov M, Cai H, Ding F. Immunomodulatory Effect and Biological Significance of β-Glucans. Pharmaceutics. 2023 May 29;15(6):1615. doi: 10.3390/pharmaceutics15061615. PMID: 37376063; PMCID: PMC10302218.
  6. Elgharably N, Al Abadie M, Al Abadie M, Ball PA, Morrissey H. Vitamin B group levels and supplementations in dermatology. Dermatol Reports. 2022 Jul 6;15(1):9511. doi: 10.4081/dr.2022.9511. PMID: 37063401; PMCID: PMC10099312.
  7. Lee MC, Hsu YJ, Shen SY, Ho CS, Huang CC. A functional evaluation of anti-fatigue and exercise performance improvement following vitamin B complex supplementation in healthy humans, a randomized double-blind trial. Int J Med Sci. 2023 Aug 15;20(10):1272-1281. doi: 10.7150/ijms.86738. PMID: 37786445; PMCID: PMC10542023.
  8. Havel P. J. (2004). A scientific review: the role of chromium in insulin resistance. The Diabetes educator, Suppl, 2–14.