When selecting a formula, it is helpful to look for brands with lower sugar content, as many pediatricians recommend avoiding options with unnecessary additives. Since every baby's digestion is different, you may need to try a few brands to see which one your baby tolerates best without becoming gassy or fussy. It is often wise to purchase a trial or single pack if available, and if you are switching brands, some parents find it helpful to transition by replacing one feed at a time while observing the baby’s reaction.