You will be able to enjoy those events again. You will be able to go out for dinner with friends and family and still have a wonderful time. My biggest fear what thinking that I would never enjoy wonderful holiday meals or birthday cake, or sushi ***ht, etc again, but I realized that I will. I can still eat those things, just in much smaller portions. If anything I think it will make me savor and appreciate the food that much more and be able to focus on the people around me at these times.
Just remember that it is not about the food that you eat, but the company you keep.