UnityLife
Supplements4 min readUpdated Apr 23, 2026Evidence-based

Creatine for Canadians Over 40

Creatine is the most-studied, best-evidenced performance supplement in history. Here is why Canadians over 40 should consider it for bone and muscle.

James Park

Medically reviewed by James Park, CSCS

Strength coach, Toronto ON

Written by UnityLife Admin

Updated April 2026 · Reviewed March 2026

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Creatine monohydrate is the single best-researched supplement in the fitness world — safe, cheap, and with hundreds of RCTs supporting modest improvements in strength, muscle mass and cognition. It is particularly valuable for adults over 40 fighting age-related muscle loss.

What it does

Creatine helps your muscle cells regenerate ATP (energy) faster. That translates to 5–10% more reps at a given weight, 1–2 extra kg of lean muscle over 12 weeks, and — increasingly — modest cognitive benefits for sleep-deprived adults.

How to take it

5 g/day of creatine monohydrate. No loading phase needed for long-term benefit. Any time of day works.

Safety

Decades of research and no safety signal in healthy adults. People with kidney disease should discuss with their nephrologist first.

The bottom line

If you strength-train twice a week, creatine monohydrate at 5 g/day is one of the few supplements almost every Canadian trainer recommends. Cheap, safe, effective.

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The bottom line

If you strength-train twice a week, creatine monohydrate at 5 g/day is one of the few supplements almost every Canadian trainer recommends. Cheap, safe, effective.

Frequently asked questions

  • Temporary water retention (~1 kg) in the first 2 weeks, then normalises.

Sources & further reading

  1. Kreider et al., 2017 — International Society of Sports Nutrition

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