Breast milk sold online is 10-percent cow, study finds

(FILE) Bottles of breast milk.

A new study finds that about 10-percent of breast milk purchased online contained a significant amount of cow's milk.

Researchers say the finding suggest that some sellers intentionally added cow's milk to the breast milk, which can be harmful to babies with dairy allergies.

The American Academy Of Pediatrics recommends waiting until a baby is at least 12 months old before giving them cow's milk because cow's milk is too low in iron and too high in protein and contains minerals that are difficult for infants to digest.

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