Vitamin D is necessary for utilization of calcium and phosphorus and in many ways acts as a hormone. The two most important forms of vitamin D are cholecalciferol (D3), which is derived from our own cholesterol and ergocalciferol (D2), a plant analogue derived from the diet. The cholecalciferol supplied by the Life Extension Buyers Club is synthetic, but its form is identical to that which is derived from cholesterol and synthesized by sunlight on the skin. Cholecalciferol Vitamin D is essential for bone growth and maintenance of bone density.
A dietary deficiency of vitamin D inhibits the production of the protein that binds calcium in the intestines, so that calcium cannot be absorbed, even if there is adequate intake. Deficiencies of vitamin D are often found in the elderly and in women who have low intake of milk and receive inadequate exposure to sunlight. Vitamin D is potent in minute quantities; one microgram of cholecalciferol has 40 IU of vitamin D activity.
Directions: Take one capsule daily, or as recommended by a healthcare practitioner. This product is best utilized when taken in divided doses with fat-containing, low fiber meals.
Ingredients: 1 capsule supplies: Vitamin D3 1000 IU.
Other Ingredients: rice flour, sucrose, dl-alpha tocopherol, corn starch, gelatin, water.
Contains soybeans. Contains corn and rice. This product contains NO milk, egg, fish, peanuts, crustacean shellfish, tree nuts, wheat, yeast, or gluten. Contains NO artificial sweeteners, flavors, colors, or preservatives.
Warning: Individuals consuming more than 2,000 IU/day of vitamin D (from diet and supplements) should periodically obtain serum 25-hydroxy vitamin D measurement. Toxicity is very unlikely in healthy individuals at a dose of less than 10,000 IU. Vitamin D supplementation is contraindicated in individuals with hypercalcemia (high blood calcium levels). People with kidney disease, certain medical conditions (such as hyperparathyroidism, lymphoma, sarcoidosis), and those who use cardiac glycosides (digoxin) or thiazide diuretics should consult a physician before using supplemental vitamin D.
The information provided is for educational purposes only and is not intended to replace professional medical advice. Always consult with a qualified healthcare provider for personalized medical guidance.
