Hi David, How to best supplement Vit D3 is one of the questions I feel being asked every day now. However, I am a bit confused since some naturopaths say “never take Vit D3 without K2, or you will end up with blood vessel calcifications instead of strengthened bones”, while others seem not to care at all when someone is supplementing just D3. Do you agree with it that D3 should never be taken without K2? Would you recommend to people over 60 and the elderly in general, or vegetarians with a relatively poor diet (no milk, little soy and little dark greens) to also supplement calcium with D3 and K2? Would you recommend to just add D3 as a “simple” to young and healthy adults who just want to up their Vit D levels for Covid prevention? Thank you.

K2 is essential for Calcium absorption, is it a good idea to take Vitamin D , along with K2 for proper Calcium absorption, absolutely. If someone is not taking calcium supplements, you do not have to take K2 if taking vitamin D, but it is still a good idea. Would you recommend to people over 60 and the elderly in general, or vegetarians with a relatively poor diet (no milk, little soy and little dark greens) to also supplement calcium with D3 and K2? Yes Would you recommend to just add D3 as a “simple” to young and healthy adults who just want to up their Vit D levels for Covid prevention? Yes