Sports Supplements Dosage Calculator
Calculate precise, evidence-based sports nutrition dosages based on body mass and International Society of Sports Nutrition (ISSN) clinical protocols. Determine optimal creatine saturation (loading vs maintenance), pre-workout caffeine, omega-3 fatty acids, and vitamin D3.
Dosage Parameters
Dosages are calibrated according to International Society of Sports Nutrition (ISSN) guidelines.
Take daily anytime with water.
45-60m pre-workout (~3 espresso cups). Avoid within 6h of sleep.
Count combined EPA + DHA amount.
Take with morning fat-containing meal.
How to use
- Enter your body weight in kilograms.
- Choose your creatine protocol: maintenance (3–5 g/day) or loading phase (0.3 g/kg/day).
- Review your personalized creatine intake targets.
- View the recommended ergogenic pre-workout caffeine threshold (3–5 mg/kg).
- Check evidence-backed daily standards for Omega-3 EPA/DHA and Vitamin D3.
Tier-1 sports supplements backed by clinical evidence
- Creatine Monohydrate — peer-reviewed standard for intramuscular phosphocreatine replenishment, peak power output, and lean mass gain.
- Caffeine Anhydrous — central nervous system adenosine receptor antagonist, enhancing anaerobic power and delaying perceived exertion when dosed 45 min pre-training.
- Whey / Casein Protein — bioavailable complete amino acid matrix to fulfill daily 1.6–2.2 g/kg targets for myofibrillar protein synthesis.
- Omega-3 Fatty Acids (EPA/DHA) — modulates exercise-induced oxidative stress and joint inflammation.
- Vitamin D3 — key pro-hormone optimizing skeletal muscle contractility and bone mineral density.
Creatine protocols: Loading phase vs steady maintenance
Loading protocol: 0.3 g/kg/day (~20–25 g/day divided across 4 equal doses) for 5–7 days rapidly saturates intramuscular stores within one week.
Maintenance protocol: steady 3–5 g daily intake produces identical tissue saturation at 28 days with zero gastrointestinal distress.
Safe pre-workout caffeine dosing guidelines
- Ergogenic window: 3 to 5 mg per kg of body mass consumed 45–60 minutes before training.
- European Food Safety Authority (EFSA) sets maximum safe single doses at 200 mg and daily caps at 400 mg across all dietary sources.
- Avoid ingesting caffeine within 6 to 8 hours of bedtime to prevent blunting slow-wave restorative sleep.
Best practices for safe supplementation
- Maintain optimal cellular hydration: creatine draws water into muscle cells, requiring an additional 500–750 ml of fluid daily.
- Cross-check stimulant totals across multi-ingredient pre-workouts and fat burners.
- Supplements complement whole-food nutrition and consistent training — they do not replace them.
Frequently Asked Questions
Is a creatine loading phase strictly necessary?
No. Clinical trials prove taking 3–5 g daily achieves full muscular saturation in 3–4 weeks identically to a 7-day loading phase, with less GI distress.
Should I take creatine on non-training rest days?
Yes. Creatine operates via cellular accumulation, requiring consistent daily intake to maintain saturated phosphocreatine reserves.
Does post-workout protein timing matter?
Total daily protein intake (1.6–2.2 g/kg) is far more important than exact nutrient timing around the anabolic window.
Can I safely stack creatine, protein, and pre-workout caffeine?
Yes, these compounds operate through distinct biological pathways and complement each other safely within recommended limits.
What calculation methodology is applied?
Dosage formulas follow International Society of Sports Nutrition (ISSN) and European Food Safety Authority (EFSA) peer-reviewed guidelines.
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