It is often claimed that drinking water can help with weight loss — and that’s true. Drinking water can boost metabolism by 24–30% over a period of 1–1.5 hours, helping you burn off a few more calories. One study showed that drinking a half-liter (17 ounces) of water about half an hour before meals helped dieters eat fewer calories and lose 44% more weight, compared to those who didn’t drink the water. Leptitox Review