Yes we have dieticians for a reason but think about it. At least for me I have to see my regular doctor before I can see a dietician, a dermatologist... Any specializing doctor. He writes prescriptions for almost any problem possibly missing a correct dietary diagnosis (is that even a correct term? Lol)
My dad was pre hypertension, doctor gave him some meds, I tossed those out and changed some things in my dad's diet, he's no longer pre hypertension....