Vitamins - VYE-ta-mins are compounds that you must have for growth and health. They are needed in small amounts only and are usually available in the foods that you eat. Vitamin B 12 is necessary for healthy blood. Cyanocobalamin and hydroxocobalamin are man-made forms of vitamin B 12 .
Some people have a medical problem called pernicious anemia in which vitamin B 12 is not absorbed from the intestine. Others may have a badly diseased intestine or have had a large part of their stomach or intestine removed, so that vitamin B 12 can't be absorbed. These people need to receive vitamin B 12 by injection.
Some conditions may increase your need for vitamin B 12 . These include:
In addition, people that are strict vegetarians or have macrobiotic diets may need vitamin B 12 supplements.
Increased need for vitamin B 12 must be determined by your health care professional.
Lack of vitamin B 12 may lead to anemia - weak blood, stomach problems and nerve damage. Your health care professional may treat this by prescribing vitamin B 12 for you.
Claims that vitamin B 12 is effective for treat of various conditions such as aging, allergies, eye problems, slow growth, poor appetite or malnutrition, skin problems, tiredness, mental problems, sterility, thyroid disease and nerve diseases have not been proven. Many of these treats involve large and expensive amounts of vitamins.
Injectable vitamin B 12 is given by or under the supervision of a health care professional. Some strengths of oral vitamin B 12 are available only with your health care professional's prescription. Others are available without a prescription.
Vitamin B 12 is available in the following dosage forms:
Vitamin B 12 is found in various foods, including fish, egg yolk, milk and fermented cheeses. It is not found in any vegetables. Ordinary cooking probably does not destroy the vitamin B 12 in food.
Vitamins alone will not take the place of a good diet and will not provide energy. Your body also needs other substances found in food, such as protein, minerals, carbohydrates and fat. Vitamins themselves often can't work without the presence of other foods.
The daily amount of vitamin B 12 needed is defined in few various ways.
Normal daily recommended intakes in micrograms - mcg for vitamin B 12 are generally defined as follows:
| Infants and children Birth to 3 years of age | 4 to 6 years of age | 7 to 10 years of age | Adolescent and adult males | Adolescent and adult females | Pregnant females | Breast-feeding females |
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