Here are 3 ways to lose belly fat in 3 sentences or less: Drink bone broth which is nutritious and easy to digest, helping to lose weight and burn fat while providing nutrients. Eat more fiber from foods like brussels sprouts and oats to reduce calories absorbed and prevent fat buildup around organs for weight loss. Do 20-40 minutes of cardio daily like aerobic exercise to improve health, burn calories, and reduce waistline according to studies.