Body fat serves several important functions in the body. Here are some reasons why we need body fat:
Energy storage: Body fat is a source of stored energy that can be used by the body when food intake is inadequate. When the body needs energy, it can break down fat cells and use the stored fat for energy.
Insulation: Body fat helps to insulate the body and regulate body temperature. Fat provides a layer of insulation that helps to keep the body warm in cold environments.
Protection: Body fat acts as a cushion and protects the internal organs from injury. It also helps to absorb shock and reduce the risk of injury during physical activities.
Hormone production: Some hormones are produced in fat cells, including leptin, which helps to regulate appetite and energy expenditure, and adiponectin, which plays a role in regulating glucose levels and insulin sensitivity.
Absorption of vitamins: Some vitamins, such as vitamins A, D, E, and K, are fat-soluble, which means they are absorbed and stored in body fat. Having sufficient body fat can help to ensure that these vitamins are available for use by the body.
However, it's important to maintain a healthy level of body fat, as excessive body fat can increase the risk of various health problems, including cardiovascular disease, diabetes, and certain types of cancer.