Author(s): Alex M

Abstract:
Nutrition is how food affects the health of the body. Food is essential—it provides vital nutrients for survival, and helps the body function and stay healthy. Food is comprised of macronutrients including protein, carbohydrate and fat that not only offer calories to fuel the body and give it energy but play specific roles in maintaining health. Food also supplies micronutrients (vitamins and minerals) and phytochemicals that don't provide calories but serve a variety of critical functions to ensure the body operates optimally. The word health refers to a state of complete emotional and physical well-being. Healthcare exists to help people maintain this optimal state of health. Good nutrition is one of the keys to a healthy life. You can improve your health by keeping a balanced diet. You should eat foods that contain vitamins and minerals. This includes fruits, vegetables, whole grains, dairy, and a source of protein.

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