Calories keep your body fueled and functioning properly, but what exactly is a calorie and how many do you actually need?

A calorie is a unit of energy used to express how much energy you exert or consume daily. We need calories; they give the body fuel and the ability to function. The calories you intake that are not ...

Many foods are high in calories, but fat contains the most calories per gram. Some high calorie options, such as avocado, nuts, and seeds, are also dense in nutrients. There are many reasons ...

But does that extra bit of muscle really make a difference? And how does fat factor in? Calories are units of energy from food that power every bodily process, and the body stores an excess of ...