If you're looking for the benefits of vitamin A, you are urged to become like Goldilocks and find the amount of vitamin A that's just right for you. There are some very serious benefits to having the right amount of vitamin A. Then again, too much or too little for your age and body weight, and you'll be looking at and living with some serious consequences, including possible death (too much vitamin A can be toxic for people).
Vitamin A is found in two food groups- animal, and plant. The form that comes from animal sources is more readily absorbed and used by the body. It can be found in liver, milk, whole eggs, and some fortified food. The form that comes from plants is not so readily absorbed or used in the body, and comes from any darkly colored fruit or vegetable such as sweet potatoes, carrots, cantaloupes, kale, apricots, or spinach.
Vitamins Health Food
Have you heard of retinol? That is what vitamin A is made into in the body. In the body, retinol can be broken down into retinal, which is used by the eye in the absorption of light and color. Carotenoids are the form of vitamin A that come from plant food sources. There are 563 known cartenoids, but fewer than 56 can be made into vitamin A in the body. Beta-carotene is the most well-known carotenoid. Alpha-carotene is another, as is beta-cryptoxanthin.
Having the right amount of vitamin A (3,000 IU's for adults is the RDA), is of primary help in two areas. The first area is vision. The old wives tale about eating carrots or liver for good eyesight is true. You'll see better in the dark, your eyes will be healthier, and your cornea and retina will thank you for it. Secondly there's the area of immunity to diseases. Vitamin A plays a key role in keeping the cells that line your respiratory tract, urinary tract, intestinal tract, skin, and mucous membranes healthy. It helps these cells to fight off micro-organisms that try to invade your body and wreak havoc. Those cells function as a barrier to infections and vitamin A keeps them fighting longer and harder.
Too much vitamin A can be deadly. You'll first notice night blindness, and increased infections. Then you'll have reduced bone density (possibly osteoporosis), liver abnormalities, and birth defects. Adults can store some vitamin A, so supplements are not recommended.
Christmas Sales Vega Whole Food Health Optimizer - Natural - 1039g - Powder 201
Dec 09, 2011 22:29:58
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Christmas Sales Vega Whole Food Health Optimizer - Natural - 1039g - Powder Overview
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