What Is Creatine?

Creatine is a naturally occurring compound made from three amino acids: glycine, arginine, and methionine. Your body produces about 1–2g per day, primarily in the liver and kidneys. You also get creatine from meat and fish — red meat and salmon are the richest sources.

Supplementing creatine (typically 3–5g/day) elevates muscle creatine stores beyond what diet and natural production can achieve, providing more fuel for high-intensity exercise.

How Does Creatine Work?

Your muscles use ATP (adenosine triphosphate) for energy. During short, explosive efforts — sprints, lifts, jumps — ATP is depleted in about 8–10 seconds. Creatine phosphate in your muscles regenerates ATP, extending the time you can produce maximal force.

With higher creatine stores, you can do more reps, lift heavier weights, and recover faster between sets. Over time, this compounds into more muscle and strength.

What to Expect as a Beginner

TimelineWhat Happens
Week 1Muscles start absorbing creatine. Slight scale weight increase (water retention) is normal.
Week 2–3Muscle creatine approaching saturation. Some notice slightly better endurance in sets.
Week 4+Full saturation. Noticeable strength improvements, better recovery, fuller muscles.
Month 3+Significant muscle and strength gains compound. Long-term users report sustained benefits.

How Much Should You Take?

The standard evidence-based dose is 3–5g per day for most adults. Body weight matters — heavier individuals with more muscle mass may benefit from 5g. Lighter individuals can start with 3g.

Use our free creatine calculator to get a dose personalized to your weight, body fat, goal, and whether you want to load or not.

Do You Need to Load?

No. Loading (20g/day — 5–7 days) saturates muscles faster but isn't required. If you start at 5g/day, you'll reach the same saturation level in about 28 days. For most beginners, skipping loading and going straight to 5g/day is the easiest, most gut-friendly approach.

What Form Is Best?

Creatine monohydrate. Full stop. It's the most studied form, the cheapest, and has the most research support. Premium forms (HCl, buffered creatine, ethyl ester) cost 3–5× more and offer no proven benefit over monohydrate for healthy adults.

Beginner Checklist

  • Start with 5g/day (or use our calculator for your exact dose)
  • Take it with water, juice, or coffee — timing is flexible
  • Be consistent — daily use, not just on training days
  • Expect 0.5–1.5 kg of scale weight increase in week 1 (water, not fat)
  • Give it at least 4 weeks before judging effectiveness
  • Drink plenty of water — creatine draws water into muscles
References
  1. Kreider RB et al. (2017). ISSN Exercise & Sport Nutrition Review Update. JISSN.
  2. Lanhers C et al. (2017). Creatine supplementation and upper limb strength performance: A systematic review and meta-analysis. Sports Medicine.