@Saleh123 11 September 2020 edited

Overview of Vitamin A

Hello learners, hope you are doing well. In my 1st article I wrote about very very important functions of vitamin A. Today I want to briefly discuss about vitamin A. *functional forms: 1. Retinol 2. Retinal 3. Retinoic acid But still there is an inactive form of vitamin A which is called provitamin A or Beta carotene. Beta carotene is found in plants whereas other functional forms of vitamin A found in animal sources. *Functions: However I have discussed important functions of vitamin A in this article. https://read.cash/@Saleh123/functions-of-vitamin-a-8534939b * Deficiency symptoms: Now lets talk about deficiency features . As vitamin A has several important functions in our body less intake of it causes several deficiency symptoms: These can be devided into 2 groups 1. Ocular maifestation

a. Xeropthalmia b. Keratomalacia c. Night blindness And finally and gradually if symptoms were not treated earlier d. Full blindness 2. Extra ocular menifestation: a. Dry and scaly skin b. Keratinization of epithelial cells of Gastro Intestinal Tract. * Sources:Lets have a look to the souces of vitamin A so that we dont miss this so important vitamin in our diet. 1. Animal sources: vitamin A is widely distributed in animal sources rather than plant sources. a. Egg b. Meat c. Fish d. Liver e. Fish oil (e.g. cod liver oil) 2. Plant sources: Vitamin A is also present in some plant sources as well. a. Papaya b. Tomato c. Green leafy vegetables d. Carrots

Guys, at last I hope you all will have a healthy diet and lead a healthy life. But to do that all of us must have knowledge about food and nutrition sciences. You can follow me. I am coming to you shortly again.

Thanks all.