Nestlé Good Start Natural Cultures (including Nestlé Good Start 2 Natural Cultures, for babies and toddlers 9 to 24 months) is the first brand of infant formula to contain probiotics—the friendly bacteria that normally reside in the gut, where they help break down foods and medicine and keep disease-causing bugs in check.

Several studies now suggest that infants on antibiotics or suffering from diarrhea may get some relief when they’re fed infant formula containing probiotics. To produce any benefit, a serving must contain at least 100 million live cultures.

Talk to your pediatrician to see if you should try a formula with probiotics. If you supplement infant formula with breastfeeding, a probiotic formula isn’t necessary since breast milk is a natural source of probiotics. (See formula and breast milk storage guidelines.)

For related information, learn about jaundice in newborns.