Taking 20 grams of creatine every day for two weeks might help young active women hold more water inside their cells, which could support muscle function.

Taking 5 grams of creatine every day for two weeks doesn’t seem to change how water is distributed in the body for young women who work out regularly.

Taking creatine every day for two weeks doesn’t change how much water is in or around your cells — even though the balance between them might shift a little — at least in young women who work out regularly.

Taking creatine for just a week can make young, healthy guys gain a little weight and look more muscular—even if they don’t work out, mostly because of water holding in their muscles.

Taking creatine for two weeks — whether a little or a lot — doesn’t change weight or body composition in young women who work out regularly.

In junior female wrestlers, taking 10 grams of creatine monohydrate daily for six weeks along with strength training led to an increase in body weight and BMI, but this was due to water retention, not an increase in fat or muscle mass.