Fiber-Fueled immunity: could your diet boost the flu shot?
NCT ID NCT05565586
First seen Jun 24, 2026 · Last updated Aug 14, 2026 · Updated 3 times
Summary
This study looks at whether eating a high-fiber diet (rich in fruits, vegetables, and whole grains) can change the bacteria in your gut and improve how well the flu vaccine works. Researchers will give 31 adults special meals and snacks before they get their flu shot. The main goal is to see if people can stick to the diet, not yet to prove it boosts immunity.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- High-fiber diet (fruits, vegetables, whole grains)
- What this could lead to
- If successful, this could show that a simple diet change may help vaccines work better.
- What could go wrong
- This is a very small, early study with only 31 participants, so results may not apply to everyone. It only tests feasibility, not whether the diet actually improves vaccine protection.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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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
-
M D Anderson Cancer Center
Houston, Texas, 77030, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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