Nitric Oxide (NO) is a gas molecule produced naturally in the body, known for its role in vasodilation — the widening of blood vessels. This mechanism enhances blood flow and oxygen delivery, making it a key focus in sports supplements aimed at performance and endurance.
Nitric oxide boosters often include ingredients like L-arginine or L-citrulline, which are precursors to NO synthesis.
In the context of exercise, NO supports better muscle pumps, endurance, and recovery by improving circulation and nutrient delivery.
Synonyms:
NO, Nitric Oxide Booster (when used in supplement context).
Benefits:
- Increases blood flow and oxygen delivery
- Enhances muscular endurance and performance
- Promotes quicker recovery after exercise
- Contributes to improved “muscle pump” sensation
Sources:
Not a supplement itself, but synthesized from L-arginine, L-citrulline, and nitrates (from beetroot, spinach, etc.).
Observations:
Often taken pre-workout. Some people may experience lightheadedness or headaches. Benefits depend on precursor availability and individual response.
Areas of Study Related:
Exercise Physiology, Vascular Biology, Nutritional Biochemistry.