Vitamin D Supplement Review

  A great source of vitamin D is sunlight.

Exposure to the rays of the sun during 20 minutes will stimulate its production because it is formed in the human body by the action of the ultraviolet rays of the sun on the skin.

This fat soluble vitamin will be converted by the kidney to the hormon Calcitrol,its most active form.Food sources:fortified milk,saltwater fish,eggs,liver .

Calciferol Forms: Capsules,tablets, liquid.

Vitamin D Dosage :

• 200IU to 10,000 IU.
  
  Most common dosage:400 IU.

• Benefits of vitamin D - Vitamin D Functions: vitamin D supplement key role:Growth and development of bones and teeth.Essential for calcium absorption and metabolism,it is an important growth nutrient for infants and children.It also enhances the immune system.

We suggest to buy from companies that follow GMP(Growth Manufacturing Practice) and present other benefits like low prices or low shipping cost.These are:

• Total Balance
  

• Revitle
  

• Interactions: Drugs or Nutrients that decrease its absorption or levels in the body:Anticonvulsivants(Barbiturates,Carbamazepine,Fosphenytoin) ,Bile acid sequestrants(Cholestyramine,Colestipol),Corticosteroids,H-2 receptor antagonists(include Cimetidine),Isoniazid,Mineral Oil,Rifampicin,Orlistat.

• Vitamin D overdose - Vitamin D Toxicity: This dietary supplement is considered safe when doses are lower than 1000 UI per day.
  
  doses may be toxic and increase the blood levels of calcium(Hypercalcemia) which causes calcium deposit in soft tissues,internal organs and increase the risk of kidney stones.
  
  Hyercalcemia include:headache,weakness nausea,vomiting and constipation.

• Pregnancy/Breast-feeding Precaution: Medical literature has not yet reported any adverse effects relative to fetal development during pregnancy or to infants who are breast-fed.

• Health conditions related and Vitamin D deficiency symptoms:

1)Multiple sclerosis:The incidence of MS is near zero in regions(equatorial) where high sunlight exposure cause ample production of vitamin D through skin exposure.

increase dramatically with latitude in both hemispheres.This fact suggests a relationship between low levels of this nutrient,a weaked immune system, and increased incidence of multiple sclerosis.

2) Osteoporosis:Postmenopausal women with osteoporosis often present vitamin d defficiency.This is due to the fact that this fat soluble vitamin plays a major role in regulating calcium absorption.Supplementation is recommended.
3)Seizure Disorders or Epilepsy: These patients with epilepsy are generally treated with anti-seizure medications such as phenobarbital,phenytoin,carbamazepin which cause vitamin D defficiency and interferes with the ability of the body to absorb calcium.

These troubles can cause skeletal problems.Providing adequate levels of this vitamin which will help calcium absorption is the correct therapeutic intervention which will help calcium absorption is the correct therapeutic intervention.

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