Babies can start to eat baby cereal around 6 months of age when they begin eating solid foods. Infant cereals, especially iron-fortified ones like rice, oat, or multigrain cereals, are commonly introduced at this time. At 6 to 9 months, babies can have these soft cereals mixed with breast milk, formula, or water. After 8 to 9 months, older babies can start eating cold breakfast cereals such as Cheerios. It is important to choose cereals with minimal added sugars and offer a variety rather than only rice cereal, to reduce arsenic exposure risk. Solid foods, including cereals, should not be introduced before 4 months. Readiness signs include good head control, sitting with support, interest in food, and the ability to swallow rather than push food out. Cereal can be a healthy part of a baby's diet, providing iron and carbohydrates for growth and development. Introducing cereal can be done by making a thin puree at first and thickening the texture as the baby advances in eating skills. It is also suggested to avoid adding cereal to the baby’s bottle, as it can increase choking risk and interfere with distinguishing solid from liquid foods. In summary, the typical recommendation is to start baby cereal around 6 months, when the baby shows readiness signs for solid foods, and to choose fortified and low-sugar options while offering a variety of grains to ensure balanced nutrition and safety.