Ok, I've been reading your posts for awhile here, and there are some serious "3 Bears" issues:

1) I like your assertions that a BMI of 26 is optimal going into old age, and that exercise/maintaining muscle mass is also important for elders (both help you weather the potential disease or cancer events to come?)

2) Of course we all know that a high-fiber, lower carb diet helps us maintain healthy weight, keeps our blood glucose and cholesterol numbers healthy, and that some level of inflammation reduction (via exercise and mTOR inhibitors) helps.

3) Protein intake in old age is the big question...to build muscle mass and maintain healthy weight I DEPEND HEAVILY ON EGGS, DAIRY, AND MEAT for getting my protein (which isn't easy, since fiber and protein are mutually exclusive in foods and 30 gm min daily fiber is essential). And now you're saying red meat implicated in prostate cancer (which I already knew), milk and eggs?

4) This sort of begs the question, "where are you supposed to get your protein in old age, and how much is too much?", since too much protein is also implicated in kidney stress and over-amping one's immune system. I'm guessing that protein supplements are not the answer either?

5) Generally, your individual threads are good but in total they create some apparent paradoxes, and perhaps beg for some specifics...and please don't answer something like "eat a lot of beans"! Remember there are health indictments on some fish and Omega-3 products now too!