 Creatine, you have to be careful with, though. If you have any issues with your kidneys, really check with your doctors before taking it. And it can also be dehydrating. So if you're taking anything with creatine, you have to up your water intake. Usually, I recommend that people take about a half ounce to an ounce of water per kilogram of ideal body weight. And a kilogram is 2.2 pounds. So you can kind of divide your weight by two to figure out your kilograms. So if you're a 150-pound person...