The Dire Effects of Vitamin A
As a means of being aware of you
not to fall trapped to this situation of getting into mess of getting
the sickness of vitamin A deficiency best knows how to avoid that to
affect you. Well to those of you who weren’t
that much aware of what basically Vitamin A is then, let me be your
knight shine in armor by saying that vitamin A is a compound also known
as Retina more to those who are in the medical fraternity . it is being
defined as a vitamin that is needed by the retina of the eye in the form
of a specific metabolite, the light-absorbing molecule retinal, that is
necessary for both low-light (scotopic vision) and color vision.
Vitamin A also functions in a very different role as an irreversibly
oxidized form of retinol known as retinoic acid, which is an important
hormone-like growth factor for epithelial and other cells. Well like the
headline says, my plan is to dwell more into the deficiency that can be
caused if one don’t take the required amount of foods that will ensure you don’t
get that chance of being a statistics that is being counted as those
who are suffering from that condition. The way this condition is so
endemic, Vitamin A deficiency is estimated to affect approximately one
third of children under the age of five around the world. It is
estimated to claim the lives of 670,000 children under five annually.
Approximately 250,000–500,000
children in developing countries become blind each year owing to
vitamin A deficiency, with the highest prevalence in Southeast Asia and
Africa. Vitamin A deficiency can occur as either a primary or a
secondary deficiency. A primary vitamin A deficiency occurs among
children and adults who do not consume an adequate intake of provitamin A
carotenoids from fruits and vegetables or preformed vitamin A from
animal and dairy products. Early weaning from breastmilk can also
increase the risk of vitamin A deficiency.
Secondary vitamin A deficiency is
associated with chronic malabsorption of lipids, impaired bile
production and release, and chronic exposure to oxidants, such as
cigarette smoke, and chronic alcoholism. Vitamin A is a fat soluble
vitamin and depends on micellar solubilization for dispersion into the
small intestine, which results in poor use of vitamin A from low-fat
diets. Zinc deficiency can also impair absorption, transport, and
metabolism of vitamin A because it is essential for the synthesis of the
vitamin A transport proteins and as the cofactor in conversion of
retinol to retinal. It is no wonder you find this condition in
malnourished populations, as the common low intakes of vitamin A and
zinc increase the severity of vitamin A deficiency and lead
physiological signs and symptoms of deficiency.
That
is just a stern warning and do trust that you will be able to make
conscious decisions to best approach our exclusive vitamin site of
vitamin-a.co.za as it has the blogs and reviews of this subject matter
in abundance, which going to benefit you to bits.
