D.K.
My daughter had this problem. She wasn't getting enough fiber in her diet. Dr. said to stop applesauce, cheese, peanut butter, white bread. We added more fruits and veggies in her diet. She ate them well, but needed more than average would. Also gave her "Cracklin' Oat Bran" cereal as snack with a cup of water. That added a lot of fiber. After a while, she was able to go back to cheese and peanut butter and other normal things.