We are in control of the amount of food we consume each day, and we can also control our output of energy, or the number of calories we burn each day. Our body weight is determined by the amount of energy that we take in as food and the amount of energy we expend in the activities of our day.

 

Energy is measured in calories. If your weight remains constant, you are probably taking in the same amount of calories that you burn each day. If you're slowly gaining weight over time, it is likely that your caloric intake is greater than the number of calories you burn through your daily activities. Various supplements are useful for individuals who want to lose their weight.