I've had bad experiences with Vitamin D supplementation in general, both with and without Vit K2, which I suspect is because oral Vit D massively increases calcium absorption and kidney strain. However I've always taken it in daily small doses, whereas most successful studies use infrequent high dosing (like 50 000 IU every 14 days).
Anyone tried both frequent and infrequent dosing of Vit D and what was your experience?
Anyone tried both frequent and infrequent dosing of Vit D and what was your experience?