If you are a candidate for weight loss, consider this. The carbohydrates, fats, and proteins in food supply energy, which is measured in calories. Carbohydrates and proteins provide about 4 calories per gram. Fat contributes more than twice as much -- about 9 calories per gram. Alcohol, although not a nutrient, also supplies energy -- about 7 calories per gram. Foods that are high in fat are also high in calories. However, many lowfat or nonfat foods can also be high in calories.

Only by comparing different weight loss plans and programs can you find the right program for you.