We supplement K2 and vit D3 in my family.

Blood test for D3 for son was 38. With a bit of research, thanks to the thread on this forum, we supplement at very high levels as we are in the northern latitudes, and kids are indoors most of the time.


For the first time in my life, I sailed thru the winter happy.

Dr. Lin , dentist, recommends K2 supplementation. In addition to a whole food based diet emphasizing yams instead of bread.


Seems K2 is primarily in grassfed meat and dairy products. Given my kids have one shot of growing healthy teeth, supplementing gives me peace of mind.