Vegetables are nature's multivitamin, packed with nutrients and compounds that improve health and functioning. Vitamin A helps the body defend against infection, promotes eye health, maintains healthy bones and aids in reproduction. Vitamin C assists immune system function and stimulates the production of collagen, which is necessary for skin repair and joint health. Your body needs vitamin B6 for optimal nerve and immune system function, as well as the production of oxygen-carrying hemoglobin in red blood cells, according to the National Institutes of Health's Office of Dietary Supplements.
Vitamin A
One quarter of men's vitamin A intake and a third of women's vitamin A intake comes from carotenoids, the form of vitamin A found in plant foods, according to the Office of Dietary Supplements. Brightly colored orange, yellow and red vegetables and dark leafy greens are the richest sources of vitamin A, notes the Mayo Clinic. For example, just 1/2 cup of carrot juice provides 450 percent of the daily value for vitamin A. Other vegetable sources of vitamin A include spinach, kale, peas and red peppers.
Vitamin C
Without adequate vitamin C intake, you might develop bleeding gums, depression, fatigue and joint pain. Smokers and people with digestive disorders that interfere with food absorption are at greater risk for vitamin C deficiency. If you want to add more ascorbic acid, or vitamin C, to your daily diet, turn to vegetables and fruits. Eating a diet that contains five servings of vegetables and fruits nets you at least 200 mg of vitamin C daily, more than the recommended intake, according to the Office of Dietary Supplements. Red peppers provide a significant source of vitamin C, with 1/2 cup packing 158 percent of the daily value for this vitamin. Broccoli, green peppers, Brussels sprouts, cabbage, cauliflower and spinach also provide vitamin C, especially when you eat them raw.
Vitamin B6
Some plant foods provide significant amounts of vitamin B6, though the vitamin is also available in meats, fortified whole grains and beans. One-half cup of cooked frozen spinach provides 8 percent of the daily value for vitamin B6, and consuming 6 ounces of tomato juice will provide 10 percent of your daily value of vitamin B6. Avocados and lima beans are other plant food sources of vitamin B6, according to the Office of Dietary Supplements.
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