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Importance of Vitamins, Minerals, and Water for Health

Learn about the two classes of vitamins, seven essential minerals, and the significance of water for the body's functions and homeostasis.

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Importance of Vitamins, Minerals, and Water for Health

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  1. Section 8.2 Vitamins, Minerals, and Water Objectives Identify the two main classes of vitamins. List seven minerals your body needs in significant amounts. Explain why water is so important to your body.

  2. What Are Vitamins? • Nutrients that are made by living things, are required only in small amounts, and that assist many chemical reactions in the body are vitamins. • There are two classes of vitamins • fat-soluble vitamins—dissolve in fatty material • water-soluble vitamins—dissolve in water

  3. Antioxidants • Vitamins called antioxidants help protect healthy cells from the damage caused by the normal aging process as well as from certain types of cancer. • Vitamins C and E are two of the most powerful antioxidants.

  4. Minerals • Your body requires only small amounts of minerals, which are nutrients that occur naturally in rocks and soil. • You need seven minerals—calcium, sodium, potassium, magnesium, phosphorus, chlorine, and sulfur—in significant amounts.

  5. Vitamin and Mineral Supplements • Vitamin and mineral supplements, therefore, are not usually necessary if your diet is nutritious and well-balanced. • An excess, or overdose, of vitamins or minerals may damage your health. • If you do take a vitamin or mineral supplement, a health care provider can advise you about how much is the right amount.

  6. Water • About 65 percent of your body weight is water. • Nearly all of the body’s chemical reactions, including those that produce energy and build new tissues, take place in a water solution.

  7. Water and Homeostasis • Homeostasis is the process of maintaining a steady state inside your body. • When you become overheated, your body excretes perspiration, which cools your body. Thus, water regulates body temperature. • Water contains dissolved substances called electrolytes that regulate many processes in your cells.

  8. Preventing Dehydration • Dehydration is a serious reduction in the body’s water content. • Symptoms of dehydration can include weakness, rapid breathing, and a weak heartbeat.

  9. How Much Water? • Every day, you need at least ten 8-ounce cups of water if you are a female 14 to 18 years old. • Males in the same age group need 14 cups of water per day.

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