Vasodilators are compounds that widen blood vessels, improving blood flow, oxygen delivery, and “pumps” during exercise. Popular examples include L-citrulline and beetroot extract (rich in nitrates).
Studies show vasodilators can enhance endurance, delay fatigue, and improve recovery. They’re commonly used in pre-workout supplements.
Overuse may cause headaches or low blood pressure in sensitive individuals.
Synonyms: Nitric oxide boosters, NO precursors
Benefits:
✔ Increases workout pumps
✔ Enhances endurance
✔ Improves nutrient delivery to muscles
Sources: Beets, watermelon, pre-workout supplements.
Notes: L-citrulline is more effective than arginine for NO production.