Scientific Effect
Brewer's Yeast is the same used in bread and beer. Supplementation can improve immune defense against pathogens, and may contribute to quality sleep.
Clinical Study
Baker's yeast beta-glucan supplement reduces upper respiratory symptoms and improves mood state in stressed women.
Results
"...daily dietary supplementation with Wellmune reduces upper respiratory symptoms and improves mood state in stressed subjects..."
Study Citation
Talbott, S. M., & Talbott, J. A. (2012). Baker's yeast beta-glucan supplement reduces upper respiratory symptoms and improves mood state in stressed women. Journal of the American College of Nutrition, 31(4), 295-300.
LinkClinical Study
The present study demonstrated that yeast beta-glucan preparation increased the body's potential to defend against invading pathogens.
Results
"Yeast (1,3)-(1,6)-beta-glucan helps to maintain the body's defence against pathogens: a double-blind, randomized, placebo-controlled, multicentric study in healthy subjects."
Study Citation
Auinger, A., Riede, L., Bothe, G., Busch, R., & Gruenwald, J. (2013). Yeast (1, 3)-(1, 6)-beta-glucan helps to maintain the body’s defence against pathogens: a double-blind, randomized, placebo-controlled, multicentric study in healthy subjects. European journal of nutrition, 52(8), 1913-1918.
LinkClinical Study
Given these benefits and the absence of adverse effects during the study period, it was concluded that sake yeast supplementation is an effective and safe way to support daily high-quality, deep sleep.
Results
"Japanese sake yeast supplementation improves the quality of sleep: a double-blind randomised controlled clinical trial."
Study Citation
Monoi, N., Matsuno, A., Nagamori, Y., Kimura, E., Nakamura, Y., Oka, K., ... & Uchiyama, A. (2016). Japanese sake yeast supplementation improves the quality of sleep: a double‐blind randomised controlled clinical trial. Journal of sleep research, 25(1), 116-123.
Link