Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Beetroot Powder (Nitrates) | Glycerol Monostearate | |
|---|---|---|
| Category | Training Compounds | Training Compounds |
| Standard Dose | 400-800mg dietary nitrate daily (equivalent to ~500ml beetroot juice or 6-12g concentrated powder) | — |
| Timing | 2-3 hours before exercise (peak plasma nitrite at 2-3h post-ingestion). For chronic supplementation: morning dosing. Do NOT use antibacterial mouthwash (kills oral nitrate-reducing bacteria, ablating the pathway). | — |
| Cycle Duration | Event-based loading (3-7 days) or ongoing daily supplementation | — |
| Evidence Level | strong_human | Emerging |
Beetroot provides dietary nitrate (NO3-) which is reduced to nitrite (NO2-) by oral commensal bacteria (Veillonella, Rothia), then further reduced to nitric oxide (NO) in acidic/hypoxic environments (stomach, exercising muscle). This nitrate-nitrite-NO pathway is oxygen-independent, complementing the L-arginine/eNOS pathway. NO enhances exercise performance by: reducing the oxygen cost of submaximal exercise (improved mitochondrial efficiency via Complex V and Complex IV modulation), enhancing blood flow to exercising muscle (vasodilation), improving calcium handling in contractile fibers (type II muscle fiber recruitment efficiency), and enhancing glucose uptake.
400-800mg dietary nitrate daily (equivalent to ~500ml beetroot juice or 6-12g concentrated powder)
2-3 hours before exercise (peak plasma nitrite at 2-3h post-ingestion). For chronic supplementation: morning dosing. Do NOT use antibacterial mouthwash (kills oral nitrate-reducing bacteria, ablating the pathway).
Event-based loading (3-7 days) or ongoing daily supplementation
Hyperhydration support ingredient that can increase fluid retention before prolonged heat or endurance work.
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