Research has thoroughly documented that creatine supplements cause a quick increase in body weight. After one week of high-dose loading of creatine (20 grams/day), your weight increases by around 2–6 pounds (1–3 kg) due to increased water in your muscles ( 1 , 14 ).

Can I use creatine to gain weight?

Creatine is a go-to supplement for muscle and weight gain. Many studies have demonstrated that it can help improve exercise performance and muscle gain over time. Several types are available, but creatine monohydrate is currently recommended.

How much creatine should I take a day to gain weight?

To maximize creatine muscle stores quickly, a loading phase of 20 grams daily for 5–7 days is recommended, followed by a maintenance dose of 2–10 grams per day.