If you've started taking creatine, or you're thinking about it, there's a good chance someone has warned you it'll make you hold water and look puffy. It's one of the most repeated claims about the supplement, and it's only half right.

What water retention actually means here

Creatine does pull more water into your muscle cells. That part is true. But this is intracellular water, meaning it sits inside the muscle fibre, not under your skin. It's a different process from the kind of bloating you get from eating too much salt or from hormonal changes, which shows up as puffiness in your face, hands, or stomach.

Extra water inside the muscle cell is actually part of why creatine works. A more hydrated muscle cell creates a better environment for protein synthesis and can make muscles look fuller and rounder, which most people training for size are happy to see.

Why the scale moves in the first week

If you use a loading phase (around 20 grams a day, split into smaller doses, for five to seven days), you'll likely notice your weight go up by a kilogram or two fairly quickly. That's water moving into your muscles, not fat. Once you drop to a normal maintenance dose of 3 to 5 grams a day, your creatine stores level off and the weight tends to stabilise.

Skipping the loading phase and just taking 3 to 5 grams daily from the start avoids that sudden jump. It takes a few weeks longer to fully saturate your muscles, but you get to the same place.

Does this go away over time?

No, and it isn't meant to. As long as you keep taking creatine, your muscles hold a bit more water than they did before you started. Stop taking it and that extra water gradually leaves, which is why some people notice a small drop in weight after coming off creatine. None of this reflects a change in body fat.

What to actually watch for

If you're feeling bloated in your stomach or face, that's not creatine doing its normal job. It's worth looking at your overall diet, sodium intake, or how much water you're drinking rather than blaming the creatine itself. Staying properly hydrated while you're taking it also helps your body handle the extra intracellular water without any discomfort.

Creatine monohydrate remains one of the most studied and well understood supplements around, and the water shift it causes is a normal, expected part of how it works in the muscle. If you're unsure how it fits with your own health situation, it's worth a quick chat with your doctor or a dietitian before you start.