1 Eat a reasonable diet, eat less meat and eat more fruits and vegetables. Proper exercise, jogging, brisk walking and swimming are the most calorie-consuming, and you don't have to do a lot of exercise to lose weight. Drink more water, speed up metabolism in the body, detoxify, kill two birds with one stone. Persistence is the most important thing to lose weight, while dieting and excretion are the least desirable.