Simple supplement and rehab program shows promise for Post-COVID recovery
NCT ID NCT07544186
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether a combination of L-citrulline supplements, nutritional therapy, and pulmonary rehabilitation could help recovered COVID-19 patients improve their blood vessel health, body composition, and physical function. 43 adults aged 40-80 who had recovered from COVID-19 took part. The intervention group received daily L-citrulline and nutritional guidance for 3 months, while both groups underwent pulmonary rehab. The goal was to see if this non-drug approach could ease lingering post-COVID issues.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- L-citrulline (a dietary supplement) combined with nutritional therapy and pulmonary rehabilitation
- What this could lead to
- If successful, this approach could offer a simple, non-drug way to help people recover from lingering COVID-19 symptoms like fatigue and poor physical function.
- What could go wrong
- This is a small, completed study with only 43 participants, so results may not apply to everyone. The supplement and rehab may not produce clear benefits over standard care.
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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
-
Instituto Nacional de Enfermedades Respiratorias
Mexico City, Mexico
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