Vasodilators are compounds that promote the dilation (widening) of blood vessels. This action enhances blood flow and oxygen delivery to muscles, making vasodilators popular in pre-workout and nitric oxide (NO) boosting supplements.
In exercise contexts, vasodilators help improve nutrient transport, support endurance, and may enhance muscle pumps during resistance training. Common natural vasodilators include ingredients like L-arginine, citrulline, and beetroot extract.
By relaxing the smooth muscle lining of blood vessels, vasodilators reduce vascular resistance and promote better circulation, which can benefit both performance and recovery.
Synonyms:
Blood flow enhancers, NO boosters.
Benefits:
- Enhances blood flow and oxygen delivery
- Supports endurance and vascularity
- Promotes nutrient transport to working muscles
- May aid post-exercise recovery
Sources:
Commonly include amino acids (arginine, citrulline), nitrates (beetroot), and herbal compounds (hawthorn, pine bark extract).
Observations:
Widely used in pre-workouts. May cause a slight drop in blood pressure; not recommended for those with hypotension unless medically advised. Overuse can lead to headaches or lightheadedness.
Areas of Study Related:
Cardiovascular Physiology, Sports Science, Pharmacology.