Life Extension - Vitamin D3 (1000iu), 1000IU, 250 capsules

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Product Features

• 250 Capsules
• Serving Size: 1 capsule
• 250 Servings Per Container

Product Description

Product Description

Vitamin D is necessary for utilization of calcium and phosphorus and in many ways acts as a hormone.78-80 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.

Product Details

• Item Weight: 3 ounces
• Shipping Weight: 15 ounces (View shipping rates and policies)
• ASIN: B000JKR6U8
• UPC: 737870251255
• Average Customer Review: 4.4 out of 5 stars  See all reviews (9 customer reviews)
• Amazon.com Sales Rank: #1,914 in Health & Personal Care (See Bestsellers in Health & Personal Care)

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Customer Reviews

Most Helpful Customer Reviews

14 of 17 people found the following review helpful:

5.0 out of 5 stars just right, March 8, 2007

By	Shysheep - See all my reviews

I am very happy with the product, and the price was better that what I found locally

4 of 4 people found the following review helpful:

5.0 out of 5 stars Great product and an essential supplement, September 26, 2008

By	Vanessa Strange "porph princess" (Neenah, WI) - See all my reviews (REAL NAME)

Amazon Verified Purchase

This is my third reorder on this product, I'm impressed by it,,,,,I know Life Extension is a good brand so I am very pleased that Amazon carries this at such an exceptionally good price, Combine that with my free shipping with my Prime Membership and I'm a happy camper, Since I hide out from the sun, supplementing vitamin D is important, though it seems that more and more info is coming out on how vitamin D deficiencies can be so dangerous for any and everyone, Soooooo,,,,would make sense for everyone to take some as a precaution,and this one is a minimal investment for such insurance,

2 of 2 people found the following review helpful:

5.0 out of 5 stars Great Value, November 16, 2009

By	Johnny Be Good "The Spartan" (Grand Rapids, MI USA) - See all my reviews

Amazon Verified Purchase

If you live in the upper midwest or northwest where clouds and gray skies rule for 3-5 months a year, doctors advise patients 50 years of age or older to add at least 1,000 to 2,000 IUs of Vitamin D3 to their diets. The Life Extension brand is a great value, and I prefer the capsules over the soft gels. So this works perfectly for me. Always consult your physician before taking any drug or supplement because some of these may interact negatively with any precriptions and/or supplements you are currently taking. Always be cautious.