Good luck with the changes! Getting old sucks, I pack it on, and it takes months to come off vs when I was in my 20's.
I am trying to go a similiar path. I am going with the lean meats and steamed veggie approach combined with intermittent fasting. After the first few days I feel surprisingly good not eating till after 11am each day.
RE: I’m full of shit so I’m going on a water diet