Question 1

what are some things that vitamin a does in our body?

Accepted Answer

Skin, membranes,more: Vitamin a, a fat-soluble vitamin, important for healthy teeth, bones, skin, mucous membranes. 2 forms, retinol, yellow pigment in animal foods (butter, eggs, cheese); carotenes, orange pigment in plant foods.  A deficiency can cause difficulty seeing in low light conditions; increased susceptibility to infections in children + retarded growth.Too much vit a,  anorexia, dry skin, insomnia, anemia.

Question 2

what is vitamin a from and how does it benefit the body?

Accepted Answer

Skin, membranes,more: Vitamin a, a fat-soluble vitamin, important for healthy teeth, bones, skin, mucous membranes. 2 forms, retinol, yellow pigment in animal foods (butter, eggs, cheese); carotenes, orange pigment in plant foods.  A deficiency can cause difficulty seeing in low light conditions; increased susceptibility to infections in children + retarded growth.Too much vit a,  anorexia, dry skin, insomnia, anemia.

Question 3

does lutein convert to vitamin a in the body?

Accepted Answer

No: Lutein (which you can only get into your system through your diet) is a carotenoid, but unlike beta carotene, does not convert to vitamin a in the body.  Zeaxanthin and lutein are the only carotenoids known to concentrate specifically in the eye.  They are believed to help filter damaging light and prevent free radical damage to the delicate structures in the back of the eye.

Question 4

what does vitamin a do for our skin and body?

Accepted Answer

Skin tone, eyesight: Vitamin a is essential for healthy eyes and skin. It exists naturally in liver, butter, lean meat, and eggs; and its precursor, beta-carotene, is in colorful vegetables such as carrots, sweet potatoes and spinach. So if you eat a healthy diet, you're getting plenty and don't need supplements. Also, too much vitamin a can cause liver & other health problems - also birth defects if you're pregnant.

Question 5

what do vitamin a do for the body and are there side effects?

Accepted Answer

Vision, : Vision is the primary use of the body for vitamin a although there are a few other functions for which it is essential especially skin health.  Usa diets almost always contain adequate amounts of vitamin a so supplementation is rarely necessary.  There are no side effects from the usual supplement doses.

Question 6

what are the side effects of vitamin a cream on your body?

Accepted Answer

Reddening, stinging: Retinol is the fat soluble form of vitamin a found in anti-wrinkle skin creams. It attracts moisture, which increases water content of skin. It increases production of collagen and promotes cell division to reduces fine wrinkling,  also helps pigmentation effects of too much sun.  

Side effects may include reddening of the skin and a mild stinging sensation, scaling and increased sun sensitivity.

Question 7

comparing supplements. tell me what vitamin a does for your body?

Accepted Answer

Vitamin A: It plays a role in functions such as vision, bone metabolism, immune function, skin & cellular health, blood, & as antioxidant.

Question 8

what mechanism in your body transports vitamin a from the liver to other tissues?

Accepted Answer

Technical: Most vitamin a is stored in the liver, some in fatty tissues, as retinol. When needed by the body, retinol combines with a plasma-specific transport protein, retinol-binding protein (rbp). The rbp-retinol complex is secreted into the blood where it combines with a larger protein transthyretin. The transthyretin-rbp-retinol complex circulates in the blood, delivering the retinol to tissues.

Question 9

what is vitamin a used for in the body?

Accepted Answer

The "eyes" have it: In the eye, vitamin a is involved in the prevention of abnormalities of development of the cornea and conjunctiva; and phototransduction. Without getting into too much detail, vitamin a is required for the synthesis of rhodopsin and iodopsin in rods and cones of the retina, so light can be transmitted to the central nervous system, which allows you to see.

Question 10

how long does it take for vitamin a to leave the body?

Accepted Answer

Many months: There is widespread agreement that it takes many months for vit a to leave the body but little specific info on how long. One website says the half-life is 6 months, meaning it takes 6 mos. For half of it to leave your body, but it does not cite a reference, and i could not find detailed info elsewhere, so the exact answer is a bit of a mystery.

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