Food aversion — A spectrum of distaste

Eating can be a simple pleasure, but for some it's a struggle. Food aversions manifest in many ways, from simple picky eating to outright disgust. Very few of us don't have at least one or two foods that we avoid. Sometimes it's about taste or texture, other times it's attached to a bad memory, such as a bout of food poisoning. Whatever the cause, is it possible to shift our aversions?