Hi Sweetheart!
Wow, what great hugs! You're starting my morning with a big smile, and hugs right back to you!
It's amazing how we know deep inside so many answers to our dilemmas... Absolutely, the lifestyle changes that you see as glaringly obvious are just that!
Poor guy, he does have his work cut out for him - I really hope he can quit the smoking, stop the fried foods, exercise and adopt a very healthy lifestyle. It is very serious that his leg artery is clogged as much as it is... And if he's smoking, then I really cringe at what the rest of his cardiovascular system looks like.
Amazingly about the calcium...from what I've studied, dropping calcium intake (from good sources) is not recommended. What the body is doing is not taking excess calcium and depositing it on the arterial walls. The body has an amazing repair system, and it uses calcium (that it'll remove from bones if it needs to get it from there), to form quick (and effective) strong patches. It's hardwired to do that. That's why injured / inflammed tissues throughout the body can show calcifications on x-rays. Once the inflammation is quieted, the body quits laying down calcifications in the area. So the lifestyle changes you mention, along with doing anti-inflammatory changes (re: Drs. Dean Ornish, Nathan Pritikin, etc...) can calm, stabilize and even reverse all the damage going on in your Dad's body.
There is so much your Dad can do, I hope he will be inspired to make the changes necessary to work on reversing these blockages. I'm cheering you both on!!!
With my love, hugs and prayers!
Deer