BONNIE SUE RAUCH / SCIENCE PHOTO LIBRARY BONNIE SUE RAUCH / SCIENCE PHOTO LIBRARY
Vitamin pills. Assortment of vitamin pills and oil capsules. Vitamins are chemicals needed in small amounts for the normal growth and development of the body, and in the maintenance of health. Oil capsules (left) contain essential oils, as well as vitamins A, E and D. The daily requirement of vitamins can normally be obtained through eating a balanced diet. However, vitamin pills can be of use during illness or old age when a person's appetite may be suppressed. They are also useful during pregnancy to cater for the needs of the developing foetus.
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