Agreed, try the diet see how you go, if you really want to " encourage " TRT, then stuck with your existing diet. Your call.
I do recommend the twice a week protocol, but once a week may work for you. Don't push her on dosages just yet, you can always discuss after you get on trt and get bloods first. You don't want to be pushy at the outset. Let her guide you. Once your on, you can adjust protocols.