Creatine Unpacked: Benefits, Safety, and Practical Guidance

Creatine is a well-supported supplement that can boost muscle strength, support heart and brain health, and may help certain neuromuscular conditions, with vegetarians/vegans potentially benefiting more due to dietary sources. It's generally safe at small-to-moderate daily doses, but high doses can stress kidneys in people with kidney disease and may cause weight gain, GI symptoms, and, with long-term high use, may reduce the body's own creatine production. Typical safe dosing is about 2-3 grams per day (creatine monohydrate), with some evidence that 5-10 grams daily long-term is also safe; always consult a healthcare provider before starting. Topical creatine creams exist but lack robust evidence and can cause skin reactions. Some populations (pregnant/breastfeeding, diabetes, liver disease, Parkinson’s, bipolar disorder) lack enough safety data; use caution.