What are vitamins? Vitamins are essential nutrients because they serve thousands of functions in the body. Your body needs vitamins but, in smaller quantities than macronutrients like protein, carbs, and fats. Eating healthy foods and having a balanced diet will help you get the health goals you desire–its important to look at food as fuel, as sources of nutrition and fuel your body and cells need to function, growth, develop, repair themselves, and allow you get stronger, leaner, healthier ... VIEW POST