Creatine

Creatine is a naturally occurring compound made from arginine, glycine and methionine. It helps regenerate adenosine triphosphate (ATP) in muscle cells so they can sustain short bursts of high-intensity activity. Meat and fish provide small amounts of creatine, but athletes often use supplemental creatine to increase muscle stores.

Creatine loading and maintenance

The most effective way to increase intramuscular creatine and phosphocreatine stores is to perform a loading phase of about 20 g of creatine monohydrate per day (split into four 5 g doses) for 5–7 days. This is followed by a maintenance dose of 3–5 g per day to sustain elevated stores; larger athletes may need up to 5–10 g per day. An alternative protocol is to consume 3 g per day for 3–4 weeks, which gradually increases muscle creatine but does not provide rapid performance benefits. Taking creatine with carbohydrate or a carbohydrate–protein drink improves uptake. Once stores are saturated, they return to baseline after 4–6 weeks if supplementation stops.

Uses, benefits and safety

Supplemental creatine increases the availability of phosphocreatine in muscle, enhancing the ability to regenerate ATP during repeated sprints or strength efforts. This can improve performance in powerlifting, sprinting, rowing and team sports requiring explosive bursts, and it may aid recovery and glycogen replenishment. Creatine is one of the most researched sports supplements and is considered safe for healthy adults at recommended doses. The primary side effect is increased body mass from water retention in muscle. Studies show no consistent adverse effects on kidney function, dehydration, muscle cramping or gastrointestinal upset. People with pre‑existing kidney disease or those taking medications should consult a healthcare professional. Because creatine draws water into muscle cells, adequate fluid intake is important when supplementing.

In summary, creatine supplementation can enhance high‑intensity exercise performance and training adaptations when combined with appropriate loading and maintenance doses. Consuming creatine with carbohydrate‑rich drinks or meals enhances retention, and maintaining good hydration supports performance and reduces potential discomfort.

Related Terms: Beta‑alanine, Caffeine, Taurine, Nitrate (beetroot), Carb‑only bottle