Now my childrens pediatrician, and I started out my children on rice cereal the day I brought them home from the hospital. That and custard pudding. From there it was the rule of making sure they could digest any new foods, I tried them on a teaspoonful of anything new then waited 24 hours and if it didn't come thru still retaining its original color, or didn't upset their stonach, Then it was added to their diet. If they were unable to handle the new food I waited 2 weeks and tried again. Foods for baby can be mashed with a fork or put in a blender. Do begin adding a little spice like salt and butter so that they become accustomed to them, unless you want them to reject foods with spices. You must decide based on each child when to start them on solid foods. It is true that some are unable to digest solids until they are 3 or 4 months old. My children did not gain as they should without solid foods. My children were all nursed for at least 3 months.