That’s what I say to the children when they bite other children. Rather than saying “no biting”, we can let them know what they can bite when they feel frustrated. Some children benefit from having a little toy in their pocket, or a biting necklace to bite when they are feeling overstimulated, anxious or frustrated. Toddlers are just learning how to communicate so biting is a way to tell adults that they need something.
Web MD tells you to try to teach toddlers the signs or words for how they are feeling.