Getting flat abs in time for Summer isn't about starving yourself or living at the gym. Reducing belly fat involves a mix of smart eating and effective exercise. Make sure you eat enough food to keep your body from experiencing hormone imbalances; eating too little (fewer than 1200 calories a day) reduces the amount of the fat-burning hormone leptin in your body, which will slow down weight loss. And if you're just exercising without changing your diet, you'll spend a lot of time at the gym with little result. Read more about the dieting and exercising formula for reducing belly fat here.