By goal
Evidence-Backed Supplements for Stamina and Endurance
Whether you are training for a race, pushing through long workouts or just chasing more day-to-day energy, supplements are a common way people try to build stamina and endurance. The evidence here is unusually strong at the top and thinner lower down, so we grade each option by what trials actually show. Caffeine, beta-alanine and creatine monohydrate carry the most robust randomized-trial support for performance, fatigue resistance and high-intensity output. A step down, beetroot and dietary nitrate, L-citrulline and nitrate- or polyphenol-rich foods like watermelon, pomegranate, blackcurrant and banana have moderate evidence for exercise economy, blood flow and recovery. Adaptogens such as rhodiola and panax ginseng, plus taurine and the newer mitochondrial compound urolithin A, remain preliminary, resting on small or early studies. Cordyceps shows genuinely mixed results. We include dosing context and safety notes for each. This is educational information, not medical advice; talk to your doctor or pharmacist before starting any supplement.
| Supplement | Evidence for this goal | Typical dose | Key caution | Studies |
|---|---|---|---|---|
| Beta-Alanine | Strong | 3.2–6.4 g/day, split to limit tingling; benefits build over 2–4 weeks. | Safe. | 19 |
| Caffeine | Strong for this goal | 3–6 mg/kg pre-exercise for ergogenic effect; ≤400 mg/day generally safe… | Safe ≤400 mg/day for most adults. | 20 |
| Creatine Monohydrate | Strong | 3–5 g/day. Optional loading: 20 g/day (split) for 5–7 days. | Very safe. | 19 |
| Banana | Moderate | 1 medium banana (about 118 g edible) provides roughly 105 kcal and 422… | Generally very safe. | 9 |
| Beetroot / Dietary Nitrate | Moderate for this goal | ~6-13 mmol (≈310-800 mg) inorganic nitrate per day, typically as 1-2 co… | Generally well tolerated. | 18 |
| Blackcurrant | Moderate | About 1 cup fresh berries (110-150 g); ergogenic/eye-health trials use… | Generally safe as food. | 10 |
| Pomegranate | Moderate | A common serving is about 1 cup of arils (174 g) or roughly half a frui… | Generally safe as a food. | 8 |
| Rhodiola Rosea | Moderate for this goal | 200–600 mg/day standardized to 3% rosavins / 1% salidroside. | Well tolerated. | 17 |
| Urolithin A | Moderate for this goal | 500–1000 mg once daily of standardized urolithin A (e.g., Mitopure), ta… | Urolithin A has a favorable short-term safety profile in trials up to about 4 months at 250… | 10 |
| Watermelon | Moderate | A typical serving is one wedge (~286 g) or 1-2 cups of diced flesh; car… | Generally very safe as a food. | 8 |
| Panax Ginseng | Preliminary | 200–400 mg/day standardized extract. | Generally safe short-term. | 16 |
| Taurine | Preliminary | 1-3 g per day orally; cardiometabolic and obesity trials used 0.5-6 g/d… | Taurine is generally recognized as safe and well tolerated at doses up to ~3 g/day, with th… | 16 |
| Cordyceps | Mixed | 1–3 g/day of cultivated extract (Cs-4 / Cordyceps militaris). | Generally safe. | 17 |
| L-Citrulline | Mixed for this goal | 6–8 g citrulline malate (or ~3–4 g pure L-citrulline) ~60 min pre-exerc… | Very safe, well tolerated. | 22 |
| Maltodextrin | Mixed | FDA: Generally Recognized as Safe (GRAS) under 21 CFR 184.1444, with no… | At normal dietary levels maltodextrin is not a recognized toxicity or cancer hazard, and no… | 12 |