Nitrate
2-3 hours before exercise
Nitrate is an inorganic compound found abundantly in beetroot, leafy greens, and other vegetables. In the body, dietary nitrate is converted to nitrite and then to nitric oxide, a molecule that relaxes blood vessels and enhances oxygen delivery to tissues. It is best known for its cardiovascular and exercise performance benefits.
Research Evidence
Supports vascular endothelial function
ModerateImproves exercise endurance and time-to-exhaustion
StrongEnhances oxygen efficiency during aerobic activity
ModerateMay improve cognitive function via cerebral blood flow
LimitedReduces resting blood pressure
StrongExpert Evidence
9 references from 4 experts
2026
2016
Safety & Cautions
Side Effects
- Beeturia (red-colored urine)
- Red-colored stool
- Mild gastrointestinal discomfort
- Temporary drop in blood pressure
Nitrate supplementation is generally well-tolerated at dietary doses. Individuals taking blood pressure medications or PDE5 inhibitors should consult a physician, as nitrate can potentiate hypotensive effects.
Pairs Well With