Anyone use a brand combining Vitamin K with D? Saw Berardi's vlog in the latest IronMag talking about the importance of supplementing both
for calcium regulation / arterial plaque prevention.
What about fake baking? Most tanning beds are primarily UVA/UVB (it's part of their sales pitch because of the skin cancer concerns othrwise) and tanning salons claim vitamin D is synthesized much the way it is from the sun. According to VitaminDCouncil.org (biased), if you stay in the sun, or a tanning bed, until your skin begins to turn pink you can make between 10,000 and 50,000 IUs of vitamin D. 10 minutes might well be the equivalent of 5,000 IU from a pill.