Take, for instance, the many jokes circulating the internet about how “hydrating” White Claw is. ... This by no means a knock against White Claw itself, or even against hard seltzer more generally — it is, after all, delicious. Just don't expect it to keep you hydrated as you imbibe; it's no substitute for plain old water.

Is white claw good for hydration?

Even though this is alcohol and sparkling water, drinking a can does not mean you're hydrating. In other words, hard seltzer does not count as water. “Because it's 5 percent ABV, you'll have a diuretic effect similar to other alcoholic beverages,” says Pritchett.

Do hard seltzers keep you hydrated?

In short, no. Hard seltzers don't help you hydrate. There isn't one type of alcohol that is hydrating, because alcoholic beverages are a diuretic.