WELL 175 Lecture Notes - Lecture 1: Nutrient, Calorie, Carbohydrate
28 Dec 2016
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Nutritional requirements: components of a healthy diet. Nutrition: the science of food and how the body uses it in health and disease. Your body requires proteins, fats, carbohydrates, vitamins, minerals, and water- about 45 essential nutrients: substances the body must get from foods because it cannot manufacture them at all or fast enough to meet its needs. Essential means that the you must get the substances from food because your body cannot manufacture enough or insufficient amounts. Macronutrients: an essential nutrient required by the body in relatively large amounts: protein, fat, carbohydrates, water. Micronutrients: an essential nutrient required by the body in minute amounts: vitamins and minerals. Essential nutrients are vital because they provide energy, help build and maintain body tissues, and help regulate body functions. Essential nutrients are obtained through digestion: the process of breaking down foods into compounds the gastrointestinal tract can absorb and the body can use.
