Decreasing Calories

Decreasing Calories
photo by: D'Arcy Norman
University of California San Francisco Children's Hospital

Calories and Your Weight

Calories are a measure of energy you get from food. The first law of thermodynamics or energy says:

  • If you eat more calories than you burn, you will gain weight
  • If you eat less calories than you burn, you will lose weight
  • If you eat the same amount of calories that you burn, you will maintain your weight

Making drastic changes to the way we eat or how much we eat does not usually result in long-term success with weight loss. For instance, skipping meals or eating very small quantities of food can lead to eating too much at the next meal. Our bodies were designed to protect us from starvation, so hunger pains can often get the better of us. Going for a long period without eating or skipping meals also can cause our bodies to burn less energy in an attempt at conservation.

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