Creatine is the most studied supplement in sports nutrition, yet it's still surrounded by myths. Here's an honest, evidence-based breakdown of what it actually does.
Creatine helps regenerate ATP, your muscles' primary energy source during short, intense efforts like lifting weights or sprinting. More available energy per set generally means you can push slightly harder, which over time supports greater strength and muscle gains.
Creatine does not damage the kidneys or liver in healthy individuals, despite the persistent rumor. It also doesn't cause dehydration or cramping — if anything, some research suggests it may help with fluid regulation during exercise. The "bloating" people notice is water retention inside the muscle cells, not under the skin.
A daily dose of about 3–5 grams is effective and doesn't require a "loading phase," though loading can saturate your muscles slightly faster if you want quicker results. Timing relative to your workout doesn't matter much — consistency day to day is what counts.
People with pre-existing kidney conditions should talk to a doctor before starting any new supplement, creatine included. Otherwise, it's one of the safest, best-researched supplements available.
Creatine monohydrate is cheap, well-studied, and modestly effective for strength and muscle gain. It's not magic, but it's one of the few supplements with strong evidence behind it.