GLOSSARY

Vasodilator Supplement is a product category or claim targeting blood flow or nitric-oxide-related effects. A pump sensation does not establish long-term muscle growth or sporting benefit.

Arginine is a substrate for nitric oxide synthase, while citrulline can contribute to circulating arginine through metabolism. This biochemical connection does not establish that every arginine or citrulline product improves blood flow or sporting performance. Citrulline malate contains a mixture whose actual citrulline amount and formulation should be checked. A transient muscle pump is not equivalent to long-term hypertrophy. Evaluate gastrointestinal tolerance, interacting exposures and the specific controlled evidence rather than accepting a nitric-oxide-booster label as a measured outcome.

Dietary nitrate can enter a nitrate-to-nitrite-to-nitric-oxide pathway involving oral bacteria and subsequent chemistry. Nitrate-rich beetroot preparations have been studied for exercise economy and performance, with effects varying by population and task. The nitrate content matters more than beverage volume alone. Antibacterial mouthwash can disrupt part of the oral pathway, but oral-health decisions need appropriate context. Increased nitric-oxide availability or a changed oxygen cost does not guarantee that every athlete will perform better in every event.

The dose refers to the amount of the relevant active ingredient, not necessarily the mass of powder or the number of scoops. A single dose, daily total and body-mass-relative dose describe different quantities. Larger amounts can increase adverse effects without improving performance. Loading, maintenance and acute timing are ingredient-specific strategies rather than universal rules. Check all products used together so that repeated ingredients do not create an unintended total intake.