Applying Life Skills ©2010Chapter 15: How Nutrients WorkChapter SummariesSix categories of nutrients work together to help your body function effectively. Each nutrient performs a different task. Nutritional deficiencies can cause health problems. Some may be mild, others can be serious. Fiber is not a nutrient, but it is an important part of healthful eating. Incomplete proteins can work together to form the complete proteins your body needs. Small amounts of fat and cholesterol are important for good health, though trans fats and saturated fats should be used sparingly. Vitamins, minerals and phytochemicals help regulate body functions and prevent disease. Water is an essential nutrient. Digestion begins when you chew food and continues as food is transported through the body. You get energy from the food you eat, and energy is measured in calories. Your basal metabolic rate (BMR) is the rate at which your body uses energy for body processes. To meet nutritional needs, eat a variety of nutrient-dense foods each day. Though fat provides energy, most of your calories should come from carbohydrates and protein foods. Foods that have low nutrient density should not be eaten often because they are poor fuel for your body. |  |
