Most of us take eating for granted — until we can't do it normally. When you have head and neck cancer, treatments can affect this experience. "Food expresses personality, culture, and community. Suddenly, the act of eating, which used to be so normal and enjoyable, can be extra-challenging," says Greta Macaire, oncology dietitian nutritionist at the UCSF Helen Diller Family Comprehensive Cancer Center in San Francisco. Here she explains what you can expect after head and neck cancer treatment.