Creatine Loading and Maintenance Protocol
Creatine monohydrate is the most-studied sports supplement there is, and dosing it well comes down to two phases: a short loading phase to saturate your muscles fast, then a steady maintenance dose. Using the ISSN protocol of 0.3 g/kg during loading and 3–5 g daily afterward, this calculator turns your body weight into an exact gram-per-day schedule.
When to use this calculator
- Technical calculations for creatine loading and maintenance protocols
- Students and fitness professionals planning supplementation
- Validating theoretical results before application
- Learning the science behind creatine dosing
- Quick reference for training programs
Calculation Example
- 75 kg loading phase
- 22.5 g daily
How it works
1 min readHow It's Calculated
The creatine loading and maintenance protocol follows these evidence-based phases:
This calculator applies the formula with your input values, checking typical ranges and alerting you to values outside normal parameters.
Standard Creatine Dosing Guide
| Protocol | Dosage | Duration | Notes |
|---|---|---|---|
| Loading | 0.3 g/kg/day | 5–7 days | Fastest saturation |
| Maintenance | 3–5 g/day | Ongoing | Sustains muscle creatine |
| No-Loading | 5 g/day | 3–4 weeks | Gradual saturation |
When to Consult a Sports Nutritionist
Final Notes
This calculation is an informational reference. For critical decisions (medical, financial, legal), consult a qualified professional. Values are current as of 2026 and reviewed periodically.
Frequently asked questions
Is creatine monohydrate the best form?
Monohydrate is the most researched, affordable, and effective form. Other forms (buffered, ethyl ester) haven't shown consistent superiority in studies.
What is the loading phase, and why use it?
Loading is taking 0.3 g/kg daily for 5–7 days to rapidly saturate muscle creatine stores. It cuts the time to peak performance from 3–4 weeks to just one week.
How much creatine should I take daily for maintenance?
3–5 g per day indefinitely. This sustains elevated muscle creatine levels. Individual needs vary slightly by body weight and muscle mass.
Can I skip the loading phase?
Yes. Take 5 g daily without loading, and you'll reach full saturation in 3–4 weeks instead of 1 week. Both approaches are equally effective long-term.
When during the day should I take creatine?
Pre- or post-workout timing doesn't significantly impact effectiveness. Take it anytime—consistency matters more than timing.
Does creatine work better with carbs or protein?
A meal with carbs and protein can enhance creatine absorption slightly, but it's not required. Plain water works fine.
Is creatine safe for women to use?
Yes, completely safe. Creatine has no androgenic (masculinizing) effects. It works identically in men and women.
How much strength and muscle can I gain from creatine?
Expect 5–15% gains in strength and 1–2 kg of lean muscle mass within the first few weeks, with continued benefits over months.
Will creatine cause water retention?
Some water is stored intracellularly in muscle tissue (not bloating). This is minimal and part of why muscle gains appear quickly.
How long before I notice results from creatine?
With loading: 5–7 days. Without loading: 3–4 weeks. Performance gains in strength and power are among the first signs.