Article doesn’t provide a link to any studies confirming this. Wondering what you all think.
Many people have heard caffeine causes dehydration. Most studies, though, show you can have up to 550 milligrams of caffeine (or about five cups of coffee) without affecting hydration levels. That means you can have quite a few caff einated sports drinks and gels while running without risking dehydration; more than 550 milligrams will have a diuretic effect.”