Importance of a Healthy Diet and Calories

The reason it is important that your body gets its daily supply of protein, complex carbohydrates, and healthy fats, is so your body gets the fuel it needs for energy and optimum health. The amount of caloric values you need in your daily diet, depends on your sex, the amount of exercise you participate in, and what food you might eat. For teenage girls ages 15-18, what is recommended is about 2500 calories a day, which most girls never reach. In boys, the expected number is higher, because of the way boys' bodies grow, so you need about 3000 calories a day for teenage boys ages 15-18.