Can I switch formula brands without a doctor's advice?

You generally do not need a medical prescription to switch between standard infant formula brands. If you feel a specific brand is causing excessive gas or discomfort, it is perfectly acceptable to transition to a different brand on your own. However, if you notice persistent digestive issues, unusual stool changes, or signs of an allergic reaction, it is always a good idea to consult your pediatrician to ensure the new formula is the right fit for your baby's needs.