Cranford Hospice is Hawke's Bay's leading palliative care provider. Our dedicated team is available 24 hours a day, seven days a week.
---------------------------
AXA
axaglobalhealthcare.com
Go further with international health insurance. Global support for people who think a little bigger
---------------------------
APOLLONIO
apollonion.com
The Apollonion Private Hospital is an ultra-modern Hospital purposely built to offer the best medical care to its patients.
---------------------------
Durbin
durbinglobal.com
Specialist medical suppliers in sourcing and distributing pharmaceuticals, medical equipment and consumable supplies.
---------------------------
Self
self.com
Women Magazine on Fitness, Health, Food, Beauty & more.
---------------------------
Easyway
allencarr.com
Allen Carr Easyway International operates clinics in more than 150 cities in over 50 countries worldwide.
---------------------------
id Hospital
idhospital.com
All kinds of plastic surgeries at affordable cost.
---------------------------
Al Zahra Hospital
alzahra.com
Al Zahra Hospital Sharjah is the first and the largest private general hospital in the UAE with both inpatient and outpatient treatment at an international standard,
---------------------------
Kunming Children�s Hospital
crhealthcare.com.hk
Kunming Children Hospital integrates first aid, medical treatment, rehabilitation, health care, & scientific research.
---------------------------
UT Health
uthealtheasttexas.com
UT Health East Texas is passionate about delivering the highest quality care with unmatched compassion, outstanding service and innovative technology.
---------------------------
WORLD HOSPITAL DIRECTORY
WHD International Journal of Medical & Health Science
Author and Copyrights: Dr Mariappa Babu Baskar @ World Hospital Directory
Title:
All about vitamin A
Word Count:
296
Summary:
Vitamins are essential for good health and well being.
Keywords:
Nutrition, health vitamins, nutrition supplements, nutrition guide
Article Body:
Vitamins are essential for good health and well being. They are defined as any group of substances required in small quantities for healthy growth and development. They cannot be manufactured in the body so they are therefore vital constituents of the diet.
There are two types of vitamins according to whether they are soluble in water or fat. Vitamin A (Retinol) is a fat soluble vitamin and this is not excreted from the body in the urine so excessive intake can have a negative effect on health. Vitamin A is present in animal origin foods eg. liver, milk and egg yolk. It is formed in the body from the pigment Beta-carotene which is present in certain vegetables eg. carrots, cabbage and lettuce.
Vitamin A has a number of roles in the body. It is necessary for normal cell division and growth. It is important for maintenance of mucous membranes of the repiratory, digestive and urinary tracts. Retinol is a pale yellow solid which dissolves easily in oil and fat and it is essential for good eye sight, particularly vision in dim light as well as having an important role in normal development of the embryo. It can be produced synthetically and therefore used to enrich margarines.
The best source of retinal is liver and a small amount 3g meets the body�s daily requirements. 700mcg per day is a sufficient amount per adult which can also be derived from the beta carotene foods eg. 2oz raw carrots.
Deficiency of Vitamin A causes stunted growth, night blindness and drying up of mucous membranes which increases the risk of infection. A continued lack of Vitamin A can lead to worsening of vision an
Why not check out our reccomended nutrition guide at http://www.nutritional-supplement-guides.com/nut-ebook.html
Home
Contact
Back to "WHD International Journal of Medical & Health Science- Homepage"
