My 8 month old had been chronically constipated for about the past 2 months, and he had had poor weight gain since then as well. He is breastfed, and does not eat any starchy food like bananas or sweet potatoes, or baby cereals. Only whole organic foods. Doctor said some people are just constipated. But I find that really hard to believe. Today I found rubbery pieces in his stool, and all he ate today was papaya, spinach, mango and steel cut oats blended finely.