Protein intake refers to the amount and frequency of protein consumed in one's diet. Proteins are essential nutrients that play a vital role in growth, development, maintenance, and repair of body tissues. They also provide energy for our cells. Adequate protein intake is necessary for overall health and well-being, as it helps to build and maintain muscles, bones, skin, hair, and other bodily structures. The recommended daily allowance (RDA) for protein varies depending on age, sex, weight, and level of physical activity, but generally ranges from 0.8 grams per kilogram of body weight to 2 grams per kilogram of body weight.