Information About Vitamin A
We Have to Know about the Vitamin A
- “Vitamin A” covers every a pre-formed nutrition, retinal, and a pro-vitamin, beta carotene, variety of that regenerate to axerophthol at intervals the inside organ tissue
(a) Animal Foods:
- Liver, eggs, butter, cheese, whole milk, fish & muscle.
- Fish liver oil is the richest natural source of retinol
(b) Plant Foods:
- Green leafy vegetables
- The darker the green leaves, the higher are carotene content.
- Vitamin A also occurs in the greenest and yellow fruits and Roots
(c) Fortified Food:
- Margarine(Commercially available butter)
- Vitamin A is keeping within the body for six to nine months
- It is needed for vision in dim light.
- The functioning of glandular and epithelial tissue which lines intestinal, respiratory and urinary tracts as well as the skin and eye
- It supports growth especially skeletal growth
- It is anti-ineffective
- Immune response
- Night blindness
- Conjunctival xerosis (lusterless dry eyes)
- Corneal xerosis, ulceration, and scarring
- Follicular hyperkeratosis
- Growth retardation
- Increases susceptibility to respiratory and intestinal infection
Symptoms of Vitamin A
- Inability to see in dim light
- The conjunctiva appears muddy and wrinkled
- Corneal ulceration and scarring.
- Ulcer heals and leaves cereal scar on the cornea which can affect vision
- Keratomalacia or phase transition of the tissue layer could be a grave medical emergency. The cornea may become soft and may bust open and eye collapses. (permanent blindness)
Prevention of vitamin A
- Improvement of diet so as to ensure a regular and adequate intake of foods rich in vitamin A
- Reducing the frequency and severity of malnutrition, respiratory tract infection, diarrhea, and measles.
- Excess intake of Vitamin A causes toxicity – nausea, vomiting, anorexia and sleep disorders but is not life threatening as in the case of Vitamin D.