does anyone have food restrictions?

Is anyone else just counting calories and protein like me? I get about 900 to 1000, exercise 4 days a week and still am slow losing. I don't eat junk food, or sweets but will have carbs occasionally but not a lot of them. I am wondering if your nutritionist have put you on some sort of restrictions? I have even had alcohol a few times, and actually have had losses those weeks. Go figure!