Internal energy stored in the body is in the form of fats

The statement you provided is not a question, but I can provide some information based on it.

The internal energy stored in the body is indeed partially in the form of fats. The body stores excess energy from food in different ways: as glycogen (stored in the liver and muscles), and as fat (stored throughout the body in fat cells).

Fat is a more long-term storage form of energy. When the body needs energy and it's not getting enough from food, it will first use the glycogen stores. When those are depleted, it will start to break down the fat for energy.

This is why, when people want to lose weight, they often need to use more energy than they're getting from food, so the body will start to use up the stored fat.

However, it's important to note that the body also needs a certain amount of fat for normal functioning, for insulation and protection of organs, and as a source of essential fatty acids that the body can't produce on its own.

So while fat is a form of stored energy in the body, it's not the only form, and it also has other important functions.