Diet and Food
Contrary to popular belief, dieting alone is not the best way to lose weight. In fact, it is probably the worst way. Why? Simply put, dieting for long periods of time puts your body into survival mode which will make your body store everything you eat as fat.
To prevent this you need to eat regular meals three times a day or small meals six times a day. Doing so will let your body know that food is available and to not hold on to food for later use. Eating regulary increases metabolism which also helps with weight loss.
Proper eating habits can only go so far. Exercise is ultimately the key factor in losing weight. Routine exercise allows you to have a calorie deficit which in turn helps you lose weight slowly and in a healthy longterm way. The more calories you use then you take in is what weight loss is all about.