VDC test kit slider
VDC-Banner-new_468
VDC test kit slider
sperti-banner

Where is our vitamin D coming from: Part 2

Posted on: April 5, 2013   by  John Cannell, MD

img

As we know from the previous blog, Professor Robert Heaney found that 1,600 IU of vitamin D/day input source is missing from modern man. What I mean by that, is somehow 25(OH)D levels of modern man reflect that humans are getting an extra 1600 IU of vitamin D that is not coming from sun exposure or the cholecalciferol in food. The question has arose, might there be 25(OH)D in meat that accounts for the equivalent of 1600 IU of vitamin D?

You must be a paid member to read the rest of this post. Please login or register now.

1 Response to Where is our vitamin D coming from: Part 2

  1. bacullen@gmail.com

    WHat about 254 nM UVc from fluorescent lights? In spite of having a thin glass envelope, how much escapes from the ends of the bulbs where there may be less phosphor? From the active region of the bulb?

Test Your Vitamin D Levels at Home!

Our in-home Vitamin D Test Kit is easy, affordable, and an accurate way to find out your Vitamin D status.

order NOW

We need your help!

We're spreading awareness on Vitamin D Deficiency
Donate NOW
Latest Articles
img
Recent research investigates the role of vitamin D in rheumatic conditions

Research found vitamin D supplementation significantly improved a lupus biomarker and reduced the recurrence of rheumatoid arthritis.

Weekly Newsletter