On the advice of others here, I began tracking my diet with the Cronometer phone app. Pretty rare that I get 1.5 gm/Kg of protein a day, I would not have guessed that. I am slowly introducing a whey protein drink and I'll see how that effects my gut.

Interesting note: the "protein bar" that happened to have in the cubboard had half as much protein and twice the calories and probably three times the cost per serving. But it is easy to carry and keep in the car.

I am not sure how I will know, short term, if this is beneficial. I guess, ask me when I turn 80 if it worked.