There are four types of calories. Protein, carbohydrates, fat and alcohol.
It's important to know how many calories are in different foods. Every food item you consume is made up one a combination of either protein, carbohydrates, fats and/or alcohol. Calories come in one of these 4 forms. Below is a list of these 4 macronutrients and how many calories are in each per gram.
And that's it! It's no wonder that you should avoid consuming foods high in fat, right? While you're here, how about you take our free physical analysis and see where you measure up.