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Vitamin A and D

Product Name: Vitamin A and D
Product Number: VNV403
Product Count: 100/CT
Product Form: Softgels
Sizes Available: 100 Softgels

Overview
Vitamin A
Vitamin A was first discovered in 1913 when scientists found it could prevent night blindness. In 1932 it was determined that Beta Carotene, also known as pro-Vitamin A, was the precursor to Vitamin A. When we consume Beta Carotene, Vitamin A is produced naturally by enzymes in the digestive tract that digest Beta Carotene. The fat-soluble Vitamin A is then stored in the liver, where it can remain for long periods of time. Vitamin A occurs naturally only in animal products such as liver, kidney, butter, egg yolks, whole milk and fortified skim milk. Meanwhile, Beta Carotene is found in yellow fruits and vegetables such as carrots, sweet potatoes, squash, apricots, and cantaloupe, and in dark leafy vegetables like collards and spinach.

Research Indicates
  • Supports night vision
  • Prevents drying of the cornea
  • Studies report that adequate intake of Vitamin A is associated with reduced risk of various forms of cancer
  • Essential for the growth of bones, teeth and soft tissues
  • May support respiratory health
  • Helps the body create effective barriers to infection, thereby supporting healthy immune function
  • Used as a treatment by professionals for acne, psoriasis and other skin disorders
  • Studies indicate possible benefits for women
  • Recent studies indicate may support healthy blood sugar balance
Recommended Dosage
  • The RDA for Vitamin A is 5,000 IU; typical daily dosage ranges from 10,000 - 25,000 IUs. Take 1 softgel, one to two times daily with a meal.
Cautions
  • If you are pregnant or lactating, consult a health care practitioner prior to using Vitamin A supplements.
  • Vitamin A is a fat-soluble nutrient and can accumulate at toxic levels in fatty tissue, avoid excessive Vitamin A intake.
  • Studies indicate a possible relationship between high Vitamin A intake from foods and supplements and the risk of hip fracture among postmenopausal women.
  • Doses greater than 10,000 IU have caused birth defects, particularly during the first seven weeks of pregnancy. Women who could potentially become pregnant should limit their daily Vitamin A levels to less than 10,000 IU daily and consult a health care practitioner to determine an appropriate dosage.
Vitamin D
Vitamin D, calciferol, is a fat-soluble vitamin. It is known as the "sunshine" vitamin because it is formed in the body by the action of the sun's ultraviolet rays on the skin. Vitamin D is converted in the kidneys to the hormone calcitrol, which is actually the most active form of Vitamin D. The effects of this hormone are targeted at the intestines and bones. The major biologic function of Vitamin D is to maintain normal blood levels of calcium and phosphorus. Vitamin D aids in the absorption of calcium, thereby helping to form and maintain strong bones. It promotes bone mineralization in concert with a number of other vitamins, minerals, and hormones. Without Vitamin D, bones can become thin, brittle, soft, or misshapen. Vitamin D prevents skeletal diseases such as rickets in children and osteomalacia in adults which cause defects and weaken bones.

Research Indicates
  • Important nutrient for bone health
  • Deficiency has been linked with increased hip fractures
  • May support healthy joint function
  • Vitamin D deficiency causes rickets
  • May be important for healthy immune function
  • May support overall skin health
  • Some evidence indicates that steroids may impair Vitamin D metabolism
Recommended Dosage
  • The RDA for Vitamin D is 400 IU; typical daily dosage is 400 IU. Take 1 softgel, one to two times daily with a meal.
Cautions
  • If you are pregnant or lactating, consult a health care practitioner prior to using this product.
  • Vitamin D is a fat-soluble nutrient and can accumulate at toxic levels in fatty tissue, avoid excessive Vitamin D intake.
  • Occasional side effects reported with large doses of Vitamin D include a disorder known as hypercalcemia, which causes calcium deposits in soft tissues. Signs of the disorder include headache, weakness, nausea, vomiting, confusion, kidney problems and constipation. Consult a health care practitioner if you experience any of these symptoms after taking Vitamin D.


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