Can a supplement help heart attack patients walk farther?

Original Title

L-Arginine Enhances the Effects of Cardiac Rehabilitation on Physical Performance: New Insights for Managing Cardiovascular Patients During the COVID-19 Pandemic

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Summary

People who had a heart attack and were doing rehab took a daily supplement called L-arginine for 3 weeks. They walked farther and felt less tired than those who took a fake pill.

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Surprising Findings

L-arginine improved physical performance independently of baseline function

It’s unusual for a supplement to work equally well across such diverse patient profiles—especially when baseline fitness is a strong predictor of recovery outcomes.

Practical Takeaways

Heart attack patients in cardiac rehab may consider discussing L-arginine (3.32 g/day) with their doctor as a potential adjunct to improve walking endurance and reduce fatigue.

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