Beetroot / Dietary Nitrate vs EPO (Erythropoietin)
Both are used for endurance. Here's how they compare on human evidence, mechanism, safety and availability — in plain English.
| Beetroot / Dietary Nitrate | EPO (Erythropoietin) | |
|---|---|---|
| Human evidence | ★★★★☆ | ★★★★★ |
| Legal status | OTC Supplement | Prescription, Controlled |
| How it works | Nitrate → (oral bacteria) → nitrite → nitric oxide via NOS-independent pathway; vasodilation, lower O₂ cost of exercise, lower BP. | Binds the erythropoietin receptor (EPOR) on marrow progenitors → more red blood cells → higher O₂-carrying capacity and VO₂max. The classic endurance doping agent. |
| In plain English | Beet juice widens blood vessels so exercise costs less oxygen and blood pressure drops — but don't use antibacterial mouthwash, which kills the bacteria that make it work. | Tells your bone marrow to build more oxygen-carrying red cells — huge endurance boost, which is why it defined cycling's doping era. Thickened blood raises clot/stroke risk. |
| Bottom line | Well-evidenced endurance and BP aid; mind the mouthwash. | — |
| Availability | Available over the counter | Controlled substance |
Which is better for endurance?
EPO (Erythropoietin) has the stronger human-evidence rating (★★★★★ vs ★★★★☆), but the right choice still depends on your goal, tolerance and budget.
Full breakdowns: Beetroot / Dietary Nitrate · EPO (Erythropoietin).
Common questions
Is Beetroot / Dietary Nitrate or EPO (Erythropoietin) better for endurance?
EPO (Erythropoietin) has the stronger human-evidence rating (★★★★★ vs ★★★★☆), but the right choice still depends on your goal, tolerance and budget.
What's the difference between Beetroot / Dietary Nitrate and EPO (Erythropoietin)?
Beetroot / Dietary Nitrate: Well-evidenced endurance and BP aid; mind the mouthwash. — EPO (Erythropoietin): Tells your bone marrow to build more oxygen-carrying red cells — huge endurance boost, which is why it defined cycling's doping…