Sweet, sour, bitter or salty are the four main taste areas on the tongue. Some autistic people may prefer foods from one of these groups, or perhaps foods of a certain texture or temperature. Others may only eat foods of a certain colour.
Tastes and flavours may be too strong for a person who is over sensitive to taste. Their diet may be limited to foods they can tolerate. It may be that odours from certain foods are too strong for them to cope with, so they limit their food to certain textures, appearances and tastes.
