To me, the question is not ‘what should you eat?’
It’s ‘where are you right now, where do you really want to be, and, why?’
I don’t see the person who’s standing in front of me, right now.
I see that future version of yourself when I look at you.
That’s the person you need to see when you look at yourself in the mirror.
That’s the person you need to be thinking about when you’re going shopping, or ordering dinner.
When you have him in mind, the answer to the first question is obvious.