What Is EER?
Have you ever heard the saying “there’s no such thing as a free lunch”? Basically, it means that you can’t get something for nothing.
For example, driving your car across town is exchanging gasoline (or electricity) for transportation. And the farther you drive, the higher the cost.
In the same way, you have to give your body energy to pay for your activity. The more active you are, the more energy (calories) you have to provide.
EER (estimated energy requirement) is the number of calories needed to repay the energy you expend through activity.
Why Does EER Matter?
When you eat fewer calories than you burn, your body breaks down body fat to get the extra energy it needs. But it also breaks down muscle when you eat too little for too long.
On the other hand, when you eat more calories than you burn, your body can build new muscle with the surplus. Although eating too many calories results in the excess being stored as body fat.
In fact, the further away you get from EER, the more likely you are to gain fat or lose muscle. Therefore, understanding EER is key to finding the right number of calories for fat loss and muscle gain.