eileen

Dr. Dowd auther of the Vitamin D Cure has a webpage just for calculating your minutes in the sun or a tanning bed.

My Results:
Vitamin D Calculator

Recommended Sunlight Exposure: 15-20 minutes
The Vitamin D Cure provides helpful tips how to improve your overall well being by increasing your Vitamin D intake.

Souce Link: http://www.thevitamindcure.com/calculator

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under-exposure to uv rays is as dangerous as over-exposure...This is "D" life! (eileen)

unity

Do you ever sleep? lol

Anyway, thats a keeper. Cool.

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“There is only so much logical space in our universe,” Binette said. “Think of it like a Chinese take-out box stuffed with Kung-Pao Shrimp. The more shrimp you stuff in, some shrimp pop out the bottom."

eileen

LOL I'm so behind on my emails and research, lol the busy season happens!

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under-exposure to uv rays is as dangerous as over-exposure...This is "D" life! (eileen)

tanfixr

That "calculator" is cool, but it doesn't really add anything. It has a couple shortcomings.
1) People don't generally know the actual UV index at a given time of day from a UVI
forcast
2) The time of year makes a difference on how effective a given UVI is for vitamin D eff.
3) The frequency of exposure isn't addressed.
4) The amount of desired vitamin D conversion isn't given.
5) The amount of body area exposed isn't addressed.
6) The effect of body geometry on the actual dose received isn't addressed.

But it is a good illustrative example of how dose duration varies.

After the June ASP meeting I might make my calculator available online that takes all of the above into account.

Don Smith

And the "baseline level" of vitamin D (25-OH-D) at the start of beginning UVR/supplement therapy must be taken into consideration.

Finally, multiply the results (calculated by the calculator) by two (to compensate for the fact that sunlight can only strike one side of the body at a time) and you will be "much closer" to the truth.