We're about equal. I have 3 FeLv+ cats, & 2 older ones, so I am very good with feline nutrition. My goal is to keep the FeLv+ guys' immune systems in good shape (no problem there--they eat like horses!). I give the 2 old ones a liquid vitamin supplement made for older cats.
I myself have health problems (diabetes & severe anemia), so I have to make sure my diet is nutritionally balanced, as well. I don't each as much red meat (for the anemia) and fruit as I should (I dislike fruit; it's too sweet); but I do keep to a low-fat, high fiber, low-sugar, high in veggies diet, and drink lots of water. My real vice (allowable on a diabetes diet) is diet soda. I don't drink anywhere near the limit, but I still wonder if artificial sweeteners are good for us. My other (NOT allaowable in great amounts on a diabetes diet) vice would be chocolate; the real stuff, not sugar-free!