Frustrated with my Doctor's Response to My Eating Habits

So I went to my primary and we went over my labs and his plans. In the end of my appointment I decided to go ahead and tell him the way I eat. He tells me that my 15 minutes are about up and that he has no pills for me that would fix the way I eat, and then asked me if I'd like to see a dietitian, I said, NO I know how I should be eating. I got perturbed with him. And that was the end, he said he'll set my next appointment up in 3 months and he'll give me a 30 bracket so we can discuss other things I need to tell him. He's don't this to me before about something else I tried to tell him about my health, so it's nothing new.