Vitamins are used to produce energy and synthesize tissues, enzymes, hormones, and other vital compounds. The table below groups vitamins into those soluble in fat and those soluble in water and provides major functions and sources of vitamins.
| Vitamin | Function | Sources |
| Fat-Soluble Vitamins | ||
| Vitamin A | Promotes normal growth of bones, growth and repair of body tissues; bone and tooth formation; vision; antioxidant in the form of beta-carotene | Milk, butter, dairy products, dark green vegetables, yellow-orange fruits and vegetables |
| Vitamin D | Regulates absorption and use of calcium and phosphorus; aids in building and maintaining bones and teeth | Direct exposure of the skin to sunlight, fortified milk, margarine, eggs, liver, fish |
| Vitamin E | Protects red blood cells; antioxidant (protects fat-soluble vitamins); stabilizes cell membranes | Vegetable oils, dark green leafy vegetables, nuts, legumes, egg yolks, salad dressings, mayonnaise, wheat germ, whole grains |
| Vitamin K | Required for synthesis of blood-clotting proteins | Bacterial synthesis in digestive tract, dark green leafy vegetables, liver, milk, grain products, egg yolk |
| Water-Soluble Vitamins | ||
| Vitamin C (ascorbic acid) | Plays an important role in collagen formation (helps heal wounds, maintains bones and teeth, strengthens blood vessels); antioxidant; strengthens resistance to infection and helps body absorb iron | Citrus fruits and juices, tomatoes, potatoes, dark green vegetables, peppers, lettuce, cantaloupe, strawberries, mangoes, papayas, cauliflower |
| Vitamin B1 (thiamin) | Helps enzymes release energy from carbohydrates | Meat, pork, liver, fish, poultry, whole-grain and enriched breads, cereals, legumes, nuts, green leafy vegetables |
| Vitamin B2 (riboflavin) | Helps enzymes release energy from carbohydrates, protein and fat; promotes healthy skin and good vision | Milk, cheese, yogurt, enriched breads and cereals, green leafy vegetables, fish, liver, lean meats, yeast |
| Niacin (nicotinic acid) | Helps enzymes release energy from carbohydrates, protein, and fat; promotes healthy skin, nerves, and digestive system | Yeast, whole grains and enriched breads and cereals, milk, meats, nuts, legumes, peanuts |
| Folate (folic acid) | Required for red blood cell formation, new cell division, protein metabolism | Dark green leafy vegetables, citrus fruits, enriched grains and cereals, legumes, seeds, melons, yeast, orange juice, asparagus |
| Vitamin B6 (pyridoxine) | Required for amino acid metabolism; used in protein and fat metabolism; aids in forming red blood cells and antibodies | Dark green leafy vegetables, whole-grain products, meats, liver, poultry, fish, shellfish, soybeans, wheat germ, fruits |
| Vitamin B12 (cobalamin) | Necessary for normal growth; helps maintain nerve cells and red blood cells; aids in synthesis of genetic materials | Primarily in animal products meat, fish, poultry, liver, eggs, milk and milk products, fortified cereals |
| Biotin | Coenzyme in energy metabolism; glycogen formation; fat synthesis | Legumes, egg yolks, chocolate, cauliflower, yeast, liver, nuts, milk |
| Pantothenic acid | Component of coenzyme for energy metabolism | Legumes, whole grains, lean beef, milk, potatoes, yeast, egg yolks, liver, peanuts, tomatoes, broccoli, fish, poultry; small amounts in fruits and vegetables |
Excerpted From:
Excerpt from Food, Nutrition, and the Young Child, by J. B. Endres, R. E. Rockwell, C. G. Mense, 2004 edition, p. 23 .
© ______ 2004, Merrill, an imprint of Pearson Education Inc. Used by permission. All rights reserved. The reproduction, duplication, or distribution of this material by any means including but not limited to email and blogs is strictly prohibited without the explicit permission of the publisher.
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