The Benefits And Perils Of Vitamin A

The Benefits And Perils Of Vitamin A

The Benefits and Perils of​ Vitamin A
Why You Need Vitamin A
Vitamin a​ plays an important role in​ vision,​ reproduction,​ and bone development. it​ encourages the​ growth of​ health surface linings in​ the​ eyes,​ lungs,​ intestines,​ and uninary track.
Vitamin a​ is​ a​ fat soluble vitamin. This means that excess amounts are stored in​ the​ liver or​ in​ fat cells. Because of​ this you must be careful not to​ take too much Vitamin A,​ as​ it​ can become toxic.
The recommended daily allowance RDA of​ vitamin a​ is​ 5,​000 International Units IU. a​ recent study showed that the​ average adult consumes only about 3,​300 IU of​ vitamin a​ per day. a​ daily intake of​ more than about 10,​000 IU of​ vitamin a​ can lead to​ toxic symptoms such as​ nausea,​ vomiting,​ headaches,​ dizziness,​ and blurred vision.
Retinol is​ the​ most useable form of​ Vitamin a​ and can be found in​ a​ variety of​ food products. the​ animal based foods with the​ highest concentrations of​ vitamin a​ are beef liver 27,​000 IU for each 3 ounces serving,​ chicken liver 12,​300 IU for each 3 ounces serving,​ and fortified skim milk 500 IU per cup. the​ plant based foods with the​ highest levels of​ vitamin a​ are carrot juice 22,​500 IU per cup,​ boiled carrots 13,​400 IU per cup of​ sliced carrots,​ and boiled spinach 11,​450 IU per cup.
Vitamin a​ Deficiency
Vitamin a​ deficiency is​ extremely rare in​ the​ United States and the​ rest of​ the​ developed world. However,​ somewhere between 250,​000 to​ 500,​000 children in​ the​ developing world go blind each year from vitamin a​ deficiency.
Excess consumption of​ ​alcohol​ and zinc deficiency are the​ most common causes of​ vitamin a​ deficiency in​ the​ United States. Zinc is​ needed to​ help the​ body process vitamin A. in​ addition,​ certain medical problems interfere with fat absorpion,​ causing a​ vitamin a​ deficiency. Those who suffer from celiac disease,​ Crohns disease,​ colitis,​ or​ pancratic disorders may need to​ consider taking a​ Vitmain a​ supplement.

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