Skin disorders like acne, boils, dryness of scalp and unidentifiable bumps could occur as can weight loss, fatigue, insomnia, dry hair and reproductive disorders. Other deficiency symptoms are abcesses, sinus trouble, frequent colds and succeptibility to allergies and the respiratory problems that come with that. In severe cases and ulcerous cornea will develop and will lead to blindness. I don't think it wise to list all the effects on things like green and red cones in the eye and the way A-aldehydes influence brain-function.ĭeficiency: Can be detrimental to your eyes and will manifest in dryness of the cornea and loss of night vision. I will list sources at the end of the article. Vitamin A is very complex in its action concerning fertility and vision, if you wish to know more about how these functions come to be, I highly recommend reading the book I get most of the scientific info from. Vitamin A should be stored in a cool, dry place and never kept in dissolution for to long. And not to break tradition, it plays a role in storage of fat, the synthesis of protein and the production of glycogen. Next to the calcium improving factors of B-vitamins, the A-vitamin will help to maintain healthy teeth and bones. Vitamin A can help the manufacture of epithelial cells in the mucous membranes and in the skin. It will improve the sense of taste (always handy for those bodybuilders that wear those ridiculous baggy pants) as well as the digestive tract function and urinary excretion and is believed to be an anti-aging weapon (ascribed to most anti-oxidants). It will protect against environmental pollution in the body, cancer formation and many other diseases because of its anti-oxidizing properties. It is needed for night vision mainly, but also fulfills several immune functions and provides healthy skin (one of the main places of storage of beta-carotene). And of course by now you know that carrots are not the only source of Vitamin A. It's quite the other way around: deficiency will impair vision in many ways but taking in more can cause problems as well. I'm sure you've heard all these fables about having to eat carrots for better vision. Vitamin A, I was always told, is the eye-vitamin. When there is enough carotene in the body, Vitamin A can be manufactured as needed so no real toxicity danger is experienced, whereas retinol already contains amounts of Vitamin A so toxicity is reached sooner. But there are also alpha-, gamma- and crypto-carotenes. Animal sources are usually retinol or dehydroretinol and plant substances are carotenes, of which beta-carotene is the most popular for supplementation because of its high toxicity line. The chemical sources of Vitamin A are many, both animal as well as vegetable. Before you consider using fat-solubles as a supplement, I would like to remind you that water-solubles are needed for the proper absorption of dietary fat and thus for the intake and use of fat-solubles. On the other hand, because of this storage they have a lower toxicity line than the water-solubles. You could probably go a substantial amount of time without them before you reach the deficiency line. Because they are lipophillic certain amounts can be stored in adipose tissue and organs and do not deplete easily. They have one key benefit, and that is there storage in the body. Without proper fat use and absorption you will not get enough of these vitamins. They are usually found in the fatty substances of food and as such are taken in through the ingestion of these things. The Fat-solubles differ from the watersolubles in their transport. You are familiar with water-solubles and their status as the poor man's supplements, now comes the rest. So we easily lose track of the fact that our dietary needs include a large amount of other ingredients, more than we think, and each one with its own special functions to provide health and better use of macronutrients. ![]() For most of us the main focus of nutrition is, was and will always be the macronutrients carbohydrate, protein and fat. ![]() As the logical continuation of the previous article I'm about to give you some more information on other micronutrients that are necessary for proper functioning of the body, and as a result to achieve your maximum genetic potential in bodybuilding.
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