Many kids become "picky eaters" at an early age and parents, being concerned about nutrition, replace fruit and vegetables with preferred low-fiber foods like white bread, cereal and noodles. Don't give up—incorporate fruit and vegetables at every meal and find a whole-grain bread or cereal your child likes. Add prunes to baked goods instead of raisins or make a sweet sauce from fresh plums and pour over fruit salad or yogurt—both prunes and plums are natural laxatives.
Busy toddlers often ignore the urge to defecate. Establish a bathroom routine and set aside time for your child to sit on the toilet.