Everything you need to know to lose weight.

Here's what you need to know to lose weight.

1. Your body uses energy for all of its chemical reactions. The chemical reactions are what we refer to when we talk about your body's metabolism. That includes muscle contractions (from walking to your heart beating), hormone creation, repairing cells, creating new blood cells, growing hair, digesting food, etc.
2. If you eat more calories that your body needs, your body stores most of the extra energy in fat cells.
3. If you eat less calories than your body needs, your body takes the extra energy from fat cells to make up the difference.
4. A pound of fat contains 3,500 calories. So when you accumulate an excess of 3,500 calories, whether in a weeks time, a month or a year, you will have added 1 of fat to your body.
5. When you create a 3,500 calorie deficiency from your diet to your body's need, you will have "burned" 1 pound of fat.
6. If you eat exactly as many calories as you "burn", you will reach and equilibrium and neither gain nor lose weight.

So losing weight becomes as simple as burning more calories than you eat. To know how many you eat is easy to find out, though it will be some work to find the info and add it up.