Share this postIs Vitamin D Safe? It Still Depends on Vitamins A and K! Human Study and Testimonialschrismasterjohnphd.substack.comCopy linkFacebookEmailNoteOtherFreeIs Vitamin D Safe? It Still Depends on Vitamins A and K! Human Study and TestimonialsChris Masterjohn, PhDDec 16, 20101Share this postIs Vitamin D Safe? It Still Depends on Vitamins A and K! Human Study and Testimonialschrismasterjohnphd.substack.comCopy linkFacebookEmailNoteOtherShareNew blog over at westonaprice.org:Is Vitamin D Safe? Still Depends on Vitamins A and K! Human Study and Testimonials