David,
Bone density should be considered as you age, even in men.
Vitamin D is a good idea.
Also strength training helps maintain bones.
I have a female primary care physician who does these blood tests that monitor vitamin levels in my blood. With a 1000 IU of vitamin D daily I was still in the low range of normal, and know that I eat a lot of dairy products also.
Now I take a multivitamin on top of the Vitamin D that effectively doubles the dose.
I was surprised that I measured low-normal when not only I added a supplement but also with all the dairy I eat.
At my 40th year reunion I saw all these guys that were once much taller than me, are now kinda my height or shorter. These were rather big Irish and Italian friends, but they all shrank in stature. I wondered why and did some research, and it seems alcohol and binge drinking inhibits intake of vitamin D.
Pretty much the alcohol abuse I saw that my friends never grew out of speed up the aging process.
Know that I am one of those Asians who can’t break down alcohol because of lack of an M-zine, so I don’t drink. A girl asked me if I was in the right reunion because I looked much younger than all my peers.
I did not shrink, but my friends sped up the aging process.
My gal “Maggie” has the same PCP (Primary Care Physician) and she was told to take vitamin D every day because as we age we do not metabolize it as efficiently as we age.
Cal