Scientists are studying vitamin C to understand how it affects health. What are some effects of vitamin C on health? People with scurvy can also develop anemia. Additional signs of scurvy include depression as well as swollen, bleeding gums and loosening or loss of teeth. Scurvy causes fatigue, inflammation of the gums, small red or purple spots on the skin, joint pain, poor wound healing, and corkscrew hairs. People who get little or no vitamin C (below about 10 mg per day) for many weeks can get scurvy. Vitamin C deficiency is rare in the United States and Canada. What happens if I don't get enough vitamin C? People with certain medical conditions such as severe malabsorption, some types of cancer, and kidney disease requiring hemodialysis.People who eat a very limited variety of food.Breast milk and infant formula have adequate amounts of vitamin C. Cow's milk is not recommended for infants under 1 year of age. Infants who are fed evaporated or boiled cow's milk, because cow's milk has very little vitamin C and heat can destroy vitamin C.People who smoke need 35 mg more vitamin C per day than nonsmokers. People who smoke and those who are exposed to secondhand smoke, in part because smoke increases the amount of vitamin C that the body needs to repair damage caused by free radicals.However, certain groups of people are more likely than others to have trouble getting enough vitamin C: Most people in the United States get enough vitamin C from foods and beverages. Research has not shown that any form of vitamin C is better than the other forms. The vitamin C in dietary supplements is usually in the form of ascorbic acid, but some supplements have other forms, such as sodium ascorbate, calcium ascorbate, other mineral ascorbates, and ascorbic acid with bioflavonoids. Vitamin C is also available alone as a dietary supplement or in combination with other nutrients. What kinds of vitamin C dietary supplements are available? Fortunately, many of the best food sources of vitamin C, such as fruits and vegetables, are usually eaten raw. Steaming or microwaving may lessen cooking losses. The vitamin C content of food may be reduced by prolonged storage and by cooking. To find out if vitamin C has been added to a food product, check the product labels.
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