UNIT 2.docx - Proteins Proteins are nutrients your body uses for building maintenance They are one of the three main food categories along with fats and

UNIT 2.docx - Proteins Proteins are nutrients your body...

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Proteins Proteins are nutrients your body uses for building maintenance. They are one of the three main food categories, along with fats and carbohydrates. There are 20 amino acids that combine to produce all the body’s proteins. Most amino acids can be obtained by eating meat, poultry, fish, shellfish, eggs, beans, and nuts. The dairy group can provide a significant amount of certain amino acids. Vegetables provide some amino acids, but not as many as meat or diary. Minerals What makes a vitamin different from a mineral? It’s the element carbon. Minerals belong to a class of non-carbon-containing compounds. Minerals are needed for growth and development. Like vitamins, minerals are required in relatively small amounts for normal growth and development. Sardines and other canned fish with edible bones are a good source of calcium and fluoride. Those are two minerals that are needed to build and maintain strong bones. Water The most important nutrient in the body is water, which makes up more than half of a person’s body mass. Sometimes more water is lost from the body than is taken in. this can cause dehydration, an unhealthy lack of water. Carbohydrates Carbohydrates are your body’s main source of quick energy. They are sugars and starches found mainly in food from plants, including seeds, fruits, leaves, tubers, and roots. Carbohydrates are one of the three main food categories, along with fats and proteins. Fats Fats are used by the body as long-term energy-storage molecules. They are one of the three main categories of food molecules, along with carbohydrates and proteins. Fats can be solid or oily, depending on the temperature. Fat is stored under the skin. It is extremely important to the body. For example, fat keeps us warm and can be burned for food when other energy sources are not available. Vitamins Everyone knows we need our vitamins. These are carbon-based compounds required in small amounts for normal growth and development. Some vitamins, such as vitamin A and vitamin E, as well as other nutrients, are fat soluble. That means they dissolve in, and become part of, fatty tissue. Others, such as vitamin C, are water-soluble. These vitamins dissolve in water an are easily passed out of the body.
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The Daily Value Daily Value- The approximate daily requirement for a nutrient. Food labels show what percentage of the Daily Value of each nutrient is contained in one serving. The Recommended Dietary Allowance (RDA)- The amount of a nutrient a healthy person should eat each day, varying by age and gender. Nutritional supplement- A product, usually in pill form, that provides a daily dose of one or more vitamins, minerals, or other underconsumed nutrients. Food nutrition labels include Daily Value percentages for certain nutrients. The Daily Value is an estimate of how much of a nutrient the average adult should consume in one day. The numbers on the label show what percentage of that amount is contained in one serving of the product.
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