Refers to solid foods. Most babies can start on solid foods at about 4-6 months regardless of whether they are bottle or breastfed. Introduce solids one at a time and wait a week before adding another new food. This gives you time to determine if your baby will have a reaction to the new food. Rice cereal, strained vegetables, and meats all make good beginner foods. Be careful not to give your baby any food that requires chewing or that could get caught in your baby's throat.