A persons metabolic rate is a measurement of how fast their body burns calories which are, in turn, a measurement of energy.
Burn more calories than your body consumes and you lose weight; burn more calories than your body consumes and you gain weight. Another way to say that is this: consume less calories than your body burns and you lose weight; consume more calories than your body burns and you gain weight.
The way to use your bodys metabolism to lose weight, then, is twofold:
Consume less calories than you burn (as in dieting);
Burn more calories than you consume (as in exercising);
The average bodys metabolic rate, and the rate at which the Percentage Daily Values of the nutrients on a foods nutrition label are based, is 2000 calories per day.
Your body burns a certain number of calories per day just by virtue of you being alive I other words, no exercise necessary. The process of breathing, for example, burns calories. As does the circulating of blood. All forms of burning calories based on nothing other than the act of being alive make up whats called you Basal Metabolic Rate (BMR). Interestingly enough, a persons BMR makes up...