Interesting thread. I had never heard of this before as a solution to a shoulder injury. As for me I have to be careful with my consumption of red meat so my arteries don't get clogged. I'm on heart and circulation meds for life too! At 75, regular exercise daily (walking, weights, stretching and calisthenics) has done wonders for me. I still get around pretty good for a senior citizen, able to play sports (softball, tennis, basketball) with much younger guys, just not for so long anymore. I need to take a breather every thirty minutes or so and drink some water to stay hydrated. After five minutes or so I'm ready to go again.
A few years ago I developed severe pain in my arms if I tried to twist them in any direction, like to put on a belt or scratch my back. The pain was usually in my shoulder and elbow joints. I thought I had some form of arthritis (and maybe I did). Pain killers helped but only temporarily. My doctor recommended that I begin to take Tumeric daily, and in about two to three weeks the pain subsided, never to return again. I still take a Tumeric vitamin pill every day. It's the one vitamin I can't recommend too highly. Do your research and you will see why.