Vitamin A

(Known as Retinol, Retinyl palmitate, Vitamin A)

tickAntioxidant
tickAids health
tickSupports the immune system
tickVitamin
How does it work?
Vitamin A is a fat-soluble vitamin derived primarily from animal-based foods. It's essential for proper immune health, muscle growth and repair, bone formation, reproduction, and wound healing.
Who is it used for?
People who limit their consumption of liver, dairy foods, and vegetables rich in beta-carotene can develop a vitamin A deficiency.
How does it work?
Vitamin A, in the form of retinyl palmitate, is found in beef, calf, chicken liver; eggs, and fish liver oils as well as dairy products including whole milk, whole milk yoghurt, whole milk cottage cheese, butter, and cheese.

Vitamin A can also be produced in the body from beta-carotene and other nutrients found in fruits and vegetables. Most dark-green leafy vegetables and deep yellow/orange vegetables and fruits (sweet potatoes, carrots, pumpkin and other winter squashes, cantaloupe, apricots, peaches,and mangoes) contain substantial amounts of beta-carotene. By eating these beta-carotene rich foods, a person can increase their supply of vitamin A.

Research shows that vitamin A boosts the immune system by stimulating white blood cell function and increasing the activity of antibodies (proteins that attack and destroy toxins). Vitamin A deficiency is linked with an increased risk of infection. Infections also tend to deplete the body's stores of vitamin A.

The liver can store up to a year's supply of vitamin A. However, these stores become depleted when a person is sick or has an infection. Vitamin A supplements are available as either retinol or retinyl palmitate. All forms of vitamin A are readily absorbed by the body.
How do I use it?
Vitamin A is a fat-soluble vitamin and is absorbed along with fat in the diet. Supplements containing vitamin A should be taken during or shortly after a meal.
What results can I expect?
Vitamin A helps to maintain a healthy immune system and reduces the risk of illness or infection.
What can it be combined with?
Vitamin A should be taken in combination with other vitamins and minerals, preferably as part of a multi-vitamin and mineral supplement.

1. McLaren DS. (1999). Vitamin A deficiency disorders. J Indian Med Assoc, 97, 320-323
2. Seddon JM, Ajani UA, Sperduto RD, Hiller R, Blair N, Burton TC, Farber MD, Gragoudas ES, Haller J, Miller DR, Yannuzzi LA, Willett W. (1994). Dietary carotenoids, vitamins A, C, and E, and advanced age-related macular degeneration. JAMA, 272, 1413-1420
3. Semba RD. (1994). Vitamin A, immunity and infection. Clin Infect Dis, 19, 489-499

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