One of the curious facts about people with food allergies is that they often appear to be addicted to the very food that is causing their problem. "How can that be doing me harm? I feel better when I eat it," they will say, as they crave foods that may give them irritable bowel syndrome, eczema or asthma. It may even contribute to bingeing and an inability to control food intake. Food allergies can make it difficult for you to stick to a diet. They can lead you to feel hungry most of the time.