Yeast fiber may supercharge flu vaccine in older adults
NCT ID NCT05074303
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether a dietary fiber from baker's yeast (beta-glucan) can improve how well the flu vaccine works in healthy adults aged 50 and older. 78 participants took either the supplement or a placebo before getting their flu shot. Researchers measured antibody levels and tracked flu and COVID-19 cases to see if the supplement boosted immune protection.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Food Science and Human Nutrition Department, University of Florida
Gainesville, Florida, 32611, United States
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