Vitamin A (Retinol) Health Benefits ,Discovery,History, Source,Uses Free

VITAMIN A

VITAMIN A :-(RETINOL)

DISCOVERY:-

In 1912, an English biochemist called Frederick Gowland Hopkins found unknown factors present in milk that were not fats, proteins or carbohydrates, but Hopkins was later awarded the Nobel Prize (in 1929) for this discovery. In 1917, Elmer McCollum from the University of Wisconsin–Madison along with Lafayette Mendel and Thomas Burr Osborne from Yale University discovered one of these substances while researching the role of dietary fats. In 1918, these “accessory factors” were described as fat soluble and in 1920, they were referred to as vitamin A.

VITAMIN 

HISTORY:-

VitaminA is a group of unsaturated nutritional organic compounds that includes retinol, retinal, retinoic acid, and several provitamin A carotenoids (most notably beta-carotene) 

USES:-

Vitamin A is a vitamin. It can be found in many fruits, vegetables, eggs, whole milk, butter, fortified margarine, meat, and oily saltwater fish. 

1.Vitamin A is used for treating vitamin A deficiency. It is also used to reduce complications of diseases such as malaria, HIV, measles, and diarrhea in children with vitamin A deficiency.

2.Women use vitamin A for heavy menstrual periods, 

premenstrual syndrome (PMS), vaginal infections, yeast infections, “lumpy breasts” (fibrocystic breast disease), and to prevent breast cancer. Some women with HIV use vitamin A to decrease the risk of transmitting HIV to the baby during pregnancy, childbirth, or breast-feeding.

3.Men use vitamin A to raise their sperm count.

4.Some people use vitamin A for improving vision and treating eye disorders including age-related macular degeneration (AMD), glaucoma, and cataracts.

5.Vitamin A is also used for skin conditions including acne, eczema, psoriasis, cold sores, wounds, burns, sunburn, keratosis follicularis (Darier’s disease), ichthyosis(noninflammatory skin scaling), lichen planus pigmentosus, and pityriasis rubra pilaris.

6.It is also used for gastrointestinal ulcers, Crohn’s disease, gum disease, diabetes, Hurler syndrome (mucopolysaccharidosis), sinus infections, hayfever, and urinary tract infections (UTIs).

7.Vitamin A is also used for shigellosis, diseases of the nervous system, nose infections, loss of sense of smell, asthma, persistent headaches, kidney stones, overactive thyroid, iron-poor blood (anemia), deafness, ringing in the ears, and precancerous mouth sores (leukoplakia).
8.Other uses include preventing and treating cancer, protecting the heart and cardiovascular system, slowing the aging process, and boosting the immune system.

9.Vitamin A is applied to the skin to improve wound healing, reduce wrinkles, and to protect the skin against UV radiation.

SIDE EFFECT:-

 HYPERSENSITIVITY OF DRUG 

1.NAUSEA

2.ANOREXIA

3.INSOMNIA

4.FATIGUE

5.RENAL FAILURE

6.VOMITING 

7. Blurry vision, 

8.Toxicity

Important Sources Of Vitamin :-

1.cod liver oil

2.eggs yolk

3.milk

4.color fruits

5.vegetables

6.mango

7.tomato

8.apricot seed 

PREVENTION IZ BETTER THN 

MEDICINES.

.