Agreed that it's impossible to supplement yourself out of a bad diet or bad lifestyle, but it sounds as though you don’t know about vitamin K2. We can produce it from K1 (different 'tail' on the K1 ring) , but most of us do it poorly, and it's converted from K1 not otherwise used, which means a *lot* of green leafy vegetables. K2 and D work together, but no K2 means much of the calcium absorbed isn't going to hard tissues - and K2 is important for osteocalcin's role in aerobic metabolism.
I'd prefer to get K2 from my diet but the best source is natto; I like the taste, but can't get past the texture (slimy). There are multiple K2s out there: the number after the MK (e.g. MK7) has to do with the number of molecules on the ‘tail’ mentioned above. The MK7 variety (from natto, BTW) is detectable in the serum longer, so it might be the most effective, but I suspect it has to do with the way FAs are packed in the chylomicrons, so if the MK7s are packed in the center, they're just taking longer to do the same job.
I've read anecdotes ('anecdata') of people who have lowered their calcium score by eating natto (or taking K2 MK7). No RCTs so far.