Just "D" Facts about Vitamin D

Benefits of Moderate UV Sunshine Exposure

How To Get Enough Vitamin D

Posted by D3forU on July 23, 2010

How To Get Enough Vitamin D

Dr John Cannell Vitamin D Council

There are 3 ways for adults to ensure adequate levels of vitamin D:

Regularly receive midday sun exposure in the late spring, summer, and early fall,

exposing as much of the skin as possible (being careful to never burn).

Regularly use a sun bed (avoiding sunburn) during the colder months.

Take 5,000 IU per day for 2–3 months, then obtain a 25(OH)D test.

Adjust dosage so blood levels are 50–80 ng/mL (or 125–200 nM/L) year-round.

Humans make thousands of units of Vitamin D within minutes of whole body exposure to sunlight. From what we know of Nature, it is unlikely such a system evolved by chance.

Vitamin D Council

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Commentary

Interestingly, most major medical groups do not recommend any of the above sources, and that the Daily Value for Vitamin D is only 400 IU, even though studies have shown the average American needs about 4-5,000 IU from all sources every day.

20 minutes of full body exposure, per side, (total of 40 min. exp.) dependent on a number of factors including time of day, season of the year, cloud cover, skin type, and facultative (existing) tan, can make 10- 20,000 IU of Vitamin D.

5-15 minutes of full body exposure, both side, dependent on a number of factors including  skin type, and facultative (existing) tan, type of lamps, can make the same amount of Vitamin D as 40 minutes (both sides) of full body outdoor exposure. Full session time is typically not required to produce maximum amounts of Vitamin D in a tanning bed.

The National Upper limit for Vitamin D supplements is presently only 2,000 IU for adults.

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