Blueberry powder may strengthen immunity in seniors

NCT ID NCT05534893

Completed Symptom relief Sponsor: Loma Linda University Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This completed study tested whether daily blueberry powder can improve immune function in overweight men and postmenopausal women aged 50-70. Participants took either blueberry powder or a placebo for a period, and researchers measured changes in immune cells and inflammation. The goal was to see if a simple dietary addition could support the immune system in an aging population.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: freeze-dried blueberry powder
What this could lead to: If it works, this could suggest that adding blueberries to your diet may help support immune function in older adults.
What could go wrong: This is a small, early-stage trial with only 52 participants. The results may not apply to everyone, and the effects could be modest.

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.

Inflammation inflammatory disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

IMMUNE RESPONSE INFLAMMATION

Contacts and locations

Locations

Loma Linda University School of Public Health

Loma Linda, California, 92350, United States

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