Life Extension Vitamin D3

by Life Extension

Product Features

• Vitamin D is synthesized in the body from sunlight
• Currently, most experts in the field believe that intakes of between 1000 and 4000 IU for adults will
• Vitamin D levels explain the seasonality of influenza

Product Description

Size: 60

Vitamin D is synthesized in the body from sunlight. But, due to the winter season, weather conditions, and sunscreen blockers, the body's ability to produce optimal vitamin D levels may be inhibited. In fact, it has been proposed that annual fluctuations in vitamin D levels explain the seasonality of influenza. All of these factors point to the value of taking a daily vitamin D supplement to ensure optimal vitamin D intake

Product Details

• Product Dimensions: 7 x 6 x 5 inches ; 1.8 ounces
• Shipping Weight: 4.8 ounces (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S.
• ASIN: B000GTFOBA
• UPC: 737870713067
• Average Customer Review: 4.4 out of 5 stars  See all reviews (11 customer reviews)
• Amazon Best Sellers Rank: #2,180 in Health & Personal Care (See Top 100 in Health & Personal Care)
  • #93 in Health & Personal Care > Diet & Nutrition > Vitamins & Supplements > Vitamins & Multivitamins

Customer Reviews

Most Helpful Customer Reviews

25 of 25 people found the following review helpful:

5.0 out of 5 stars This is a very good product, August 11, 2008

By 

Rich Blumenthal ((Mission Viejo, CA USA)) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Life Extension Vitamin D3, 5000 IU, 60-Count (Health and Beauty)

The warning on the label cautions the patient that high-dosage Vitamin D3 might cause all sorts of health problems. It advises monthly blood tests to check for serum 25(OH)D in the danger level. I am happy to report that for way more than 99% of the population, 5,000 IU will bring you into the optimal range. This warning is the manufacturer's way of limiting legal liability in case something goes wrong, but it basically is safe. 5,000 IU typically brings a blood level of 15 ng/mL up to around 40 ng/mL. You could go three times that high and it would still be safe according to research done by Dr. Reinhold Vieth at the University of Toronto. If everyone took 5,000 IU of D3 the world would be far healthier. Disclosure: I am not connected to this company except as a customer, I do not sell vitamins, and I am not a health professional.

9 of 9 people found the following review helpful:

5.0 out of 5 stars I'm happy., March 21, 2007

By 

Edward John Gross (Minneapolis, MN USA) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

It's hard to get good Vit D. This is the good stuff. Do your research and realize that this one day may save your life and the life of your family. I haven't had a cold or flu this year because I daily take my VitD3 minimums.

8 of 8 people found the following review helpful:

5.0 out of 5 stars Learn about vitamin D3 from expert dietitians and doctors., November 6, 2008

By 

D. J. Kaplan (Alexandria, VA) - See all my reviews
(REAL NAME)   

This review is from: Life Extension Vitamin D3, 5000 IU, 60-Count (Health and Beauty)

Allow me to be straight forward and succinct. Go to http://www.vitamindcouncil.com/; explore the website; make up your own mind

Now to be antectotal: My wife and I have been taking this dosage for two years and have not yet caught even a code.

One other comment: Both of us have found that our hair and our nails are growing about 1.3 times as rapidly as they used to. Why?

I don't know.

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