When and how should I transition my baby from formula or breast milk to cow's milk at one year?

AAP and WHO guidance supports introducing whole cow's milk around 12 months, not before, because younger infants cannot safely digest its higher protein and mineral load and it lacks sufficient iron. The transition should be gradual over 1-2 weeks. If you are breastfeeding, there is no need to add cow's milk — it's optional, not mandatory. However, we replace formula with cow's milk.

We first introduce 30 ml of cow's milk to the baby for the next three days to check for any signs of allergy, shifting gradually to full cow's milk over 7-14 days. Cow's milk intake should be limited to about 16-20 oz (roughly 480-600 ml) per day at 12 months and older, since excess can displace iron-rich foods and increase constipation risk.

Packaged pasteurised milk is preferred over unpasteurised local vendor milk for infants due to contamination and standardisation concerns.