Vegan diet put to the test against asthma inflammation
NCT ID NCT07480369
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study will test whether a 12-week vegan diet can lower inflammation in adults with mild to moderate asthma compared to a balanced omnivorous diet. Researchers will measure immune markers and asthma control in 280 participants aged 18-30. The trial is not yet recruiting.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- vegan diet
- What this could lead to
- If it works, this could point toward a dietary approach to help manage asthma by reducing inflammation.
- What could go wrong
- This is an early-stage trial with no results yet. Diet changes are hard to stick to, and any benefits may be small or not apply to everyone.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 280 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Mar 2026
An estimate. Start dates often move.
- Expected to finish
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Sep 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 50 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: For all groups: * Aged 18-30 years * Willing to adhere to assigned dietary plan (vegan or omnivorous) for 12 weeks * Non-smoker for at least 5 years * Body mass index (BMI) between 18.5 and 24.9 kg/m2 For the asthma group: * Clinical diagnosis of mild or moderate asthma (GINA criteria), made at least 12 months before enrollment * Stable asthma status (no exacerbations or changes in therapy within the past 3 months) * No change in pharmacotherapy during the study period Exclusion Criteria: * Use of systemic corticosteroids (oral or intravenous) within the past 3 months * Ongoing biological therapy for asthma (e.g., anti-IgE, anti-IL-5, anti-IL-4R) * Severe asthma as per GINA criteria * Recent asthma exacerbation requiring hospitalization or steroid burst (\<3 months) * Presence of other chronic autoimmune or inflammatory diseases * Pregnancy or lactation * Active infection or acute illness at the time of recruitment * Adherence to specialized exclusion diets (e.g., ketogenic, low-FODMAP) * History of eating disorders * Inability or unwillingness to participate in follow-up visits or comply with the protocol
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
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