People mainly take Brewer's Yeast for energy. Based on 3 first-hand reports and 10 meta-analyses & systematic reviews in the medical literature. Ranked #1790 of 3,539 overall.
Of reports that state an outcome, 100% are positive.
Of the people who reported each effect, the share who said it got better.
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
3+ meta-analyses or systematic reviews and 10+ randomized controlled trials in humans. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: Strength of evidence for non-pharmacologic therapies in HS is limited by small study size and lack of randomized controlled trials. Future large-scale investigations should be pursued to better establish efficacy and dosing regimens for the use of non-pharmacologic treatments in HS.
PubMed 31106609 ↗Conclusion: Saccharomyces organisms should now be added to the growing list of emerging fungal pathogens. Special caution should be taken regarding the use of S. boulardii probiotic preparations.
PubMed 16267727 ↗Conclusion: Reviewed data show that weight loss from bariatric surgery may lead to HS improvement but often results in more severe malnutrition that worsens or even leads to new onset HS post bariatric surgery. Future reporting is needed to conclusively determine the role of diet in HS.
PubMed 31651051 ↗Conclusion: Cr supplementation with brewer's yeast may provide marginal benefits in lowering FPG in patients with T2DM compared to placebo however it did not have any effect on A1C.
PubMed 25971249 ↗As stated by users — not a recommendation. Follow the label or your doctor.
How often each side effect came up across all reports.
First-hand experiences, quoted verbatim. We show one positive and one negative where both exist.
“Brewer's yeast helps keep me awake fairly well.”
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 3, 2026. How we rate