Formula, in Nutrition Planning

Creatine Loading Formula

Two protocols saturate muscle creatine stores: loading (20 g/day for 5–7 days then 3–5 g/day) or steady (3–5 g/day for ~28 days). Both reach the same endpoint; loading just gets there faster.

2 variables. Published Mar 12, 2026. Updated May 10, 2026. By AI Fit Hub.

Education, not medical advice. The result comes only from the published formula and your inputs. How we check our formulas.

Formula

loading_phase: dose_g = 0.3 × mass_kg per day, split into 4 doses, for 5–7 days
maintenance: dose_g = 0.03 × mass_kg per day (or flat 3–5 g) indefinitely

Variables

dose_g

Daily creatine dose

Grams of creatine monohydrate. Studies overwhelmingly use monohydrate; other forms (HCl, ethyl ester) are marketed but not better supported.

mass_kg

Body mass

Kilograms. Larger people have more muscle and therefore more storage capacity, so dose scales linearly.

Step by step

1

Choose protocol: loading for fast results, maintenance-only for slower-but-simpler.

Loading: 5–7 days at high dose, then drop to maintenance. Skip-loading: just take 3–5 g/day, reach saturation in ~28 days.
2

If loading: compute 0.3 g/kg/day and split into 4 doses spread across the day with meals.

78 kg × 0.3 = 23.4 g/day. 4 doses of ~5.9 g. Take with a meal containing carbs and protein for best uptake.
3

After day 5–7, drop to maintenance.

0.03 × 78 = 2.34 g/day. In practice, round to 3–5 g/day (margin handles individual variability).
4

Continue maintenance indefinitely. Stopping returns intramuscular creatine to baseline over 4–6 weeks.

Daily 3 g with any meal. No cycling needed. Drink an extra ~500 ml water during the first week — creatine pulls water into muscle.

Worked example

78 kg adult, loading protocol

Body mass (kg)

Protocol

Loading + maintenance

Loading: 0.3 × 78 = 23.4 g/day for 6 days, split 4 × 5.85 g. Maintenance: ~3 g/day thereafter.

23 g/day for 6 days (~140 g total during load), then 3 g/day indefinitely. Expect 1–2 kg increase in scale weight (water) within 7–10 days.

Common variations

Skip loading: 3–5 g/day from day 1. Reaches the same intramuscular saturation in 21–28 days. Saves the GI discomfort some people get during loading.

Cycling protocols (8 weeks on, 4 weeks off) are common in fitness culture but have no evidence base. Continuous use is fine.

Vegetarians/vegans show ~30% higher response because dietary baseline is lower. Worth emphasizing in those populations.

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Sources

Kreider RB et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine , Journal of the International Society of Sports Nutrition (2017)
Hultman E et al. Muscle creatine loading in men , Journal of Applied Physiology (1996)