About Weight Loss Your weight is controlled by the number of calories you eat and the number of calories you use each day. To lose weight, you need to take in fewer calories than you use. Healthy Eating Learning the basics of nutrition can help make meal planning a breeze. It's not that hard to change the way you eat and prepare foods. Being Active You can make your weight loss effort more successful by adding daily exercise to your routine. The bonus: Exercise offers more health benefits than just weight control.