A brief report: I've now been on D3/K2 at lunch and another 1000 IU of D3 at dinner for a few days, and I can see the change, or so I think. It seems that bone and joint pain is down and my energy and mood is better and more positive. Now, this could be placebo or just correlation (and so not causation), but regardless I'll take it. I really think that being so low on vitamin D and supplementing would make and so is making a difference.