If diet advice is not what you want from her, I would tell her that directly and see where it goes from there if you think you want to stay with this person.

It reminds me of when I was looking for a T and I talked with one who had some kind of aromatherapy going in the waiting room which seemed staged and unnatural to me, then in the room she sat on the edge of her seat, and when I told her I was depressed she immediately (without asking more about that) decided I needed to be "put on" Wellbutrin and then we would see about some social groups to "get me" into.

Bye, T, have a wonderful life...