Caffeine, whether in food or drink, acts as a diuretic, meaning that it stimulates the bladder to produce more urine. So, one bed-wetting solution many experts recommend is to avoid caffeine in the late afternoon and evening.
Just because your child doesn’t drink coffee doesn’t mean he isn’t ingesting caffeine. Teas, colas, and energy drinks often contain caffeine. And one food that many children love, chocolate, also contains a chemical closely related to caffeine. So you might want to be cautious about hot chocolate and desserts such as brownies or chocolate ice cream.