When is the best time to start a newborn on cereal along with their formula?

It is generally recommended to introduce solid foods, including cereal, to a baby when they are around 4 to 6 months old, as long as they show signs of developmental readiness such as sitting with support, good head control, and the ability to hold their head upright. Consult with your baby's pediatrician to determine the best time to start introducing your baby to cereal in their bottle to ensure it aligns with their individual needs and development.