Creatine is the most researched supplement in fitness. Yet stubborn myths about alleged side effects persist. In our creatine guide, we already covered the basics. Here, we examine the 7 most common myths – and what current research actually says.
Myth 1: "Creatine causes water retention and makes you look bloated"
Fact: Yes, creatine retains water – but intracellularly, meaning *inside* the muscle cells, not under the skin. The result is a fuller, more pumped look to the muscles. It has nothing to do with the "puffy" appearance many fear. On the contrary: increased cell volume can even be an anabolic signal for muscle growth.
Myth 2: "Creatine damages the kidneys"
Fact: This myth stems from the fact that creatine raises blood creatinine levels – a marker typically used to assess kidney function. But the increase is a direct result of supplementation, not a sign of kidney damage. Over 500 studies have found no negative effects on healthy kidneys. However, those with existing kidney disease should consult a doctor first.
Myth 3: "Creatine causes hair loss"
Fact: This myth originates from a single 2009 study with rugby players. It showed an increase in DHT (dihydrotestosterone) – a hormone associated with hereditary hair loss. However: the DHT increase remained within the normal range, and no hair loss was observed. No subsequent study has confirmed a link between creatine and hair loss.
Myth 4: "Creatine is only useful for bodybuilders"
Fact: Creatine benefits practically every athlete. Meta-analyses (2024/2025) show strength gains regardless of age or training status. Particularly interesting: endurance athletes also benefit from improved recovery, and older adults show significant improvements in muscle strength and mass.
Myth 5: "You need a loading phase"
Fact: A loading phase (20g/day for 5–7 days) fills stores faster but is not necessary. With 5g daily, you reach the same saturation level after 3–4 weeks. The loading phase can cause gastrointestinal issues in some people – another reason to simply start with 5g/day.
Myth 6: "You need to cycle creatine"
Fact: There is no scientific reason for creatine cycling. Long-term studies spanning years show no habituation effects and no side effects with continuous use. Your body doesn't "get used to" creatine – the effect remains constant.
Myth 7: "Creatine only affects muscles"
Fact: Exciting new research! A 2024 meta-analysis shows that creatine can improve memory, attention, and processing speed. Effects were particularly strong during sleep deprivation. Even more exciting: a 2025 clinical study suggests creatine may help with depression symptoms – a promising but still early research area.
Bonus: Who Benefits Most from Creatine?
Vegetarians and vegans. Since creatine is primarily found in meat and fish, people who don't eat meat typically have lower creatine stores. Supplementation often shows disproportionately high benefits for them – both cognitively and physically.
Conclusion
Creatine monohydrate is safe, affordable, and one of the few supplements with an overwhelming evidence base. 5g daily in water – that's all you need. The myths? All debunked.