John, I grew up in Japan and know first hand about the low osteoporosis incidence rate there. The Japanese soil is amazing!! My dad had the best garden and we were so healthy growing up. There's something to be said about the boron content in our soil/water sources. Here in the USA, warnings are out about getting too much boron (recommendations are 3-5 mg max a day.) But in some countries the people get 70+mg per day just through their food/water....not to mention any additional supplementation! I don't think we have a good grasp on the "whole food supplement" idea in this country!