Some online breast milk contains cow’s milk, study says

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There’s a new warning about breast milk that’s sold online.

A new study suggests it might not be 100% human milk.

Researchers at Nationwide Children’s Hospital in Columbus, Ohio analyzed samples that were advertised as breast milk online, and found that one in ten were mixed with cow’s milk. They say it was probably intentional, and most likely done to stretch its volume.

The study’s author says cow’s milk itself is not a risky substance, but pediatricians strongly advise against giving it to infants under 12 months of age.

Experts also advise against buying breast milk from an unknown source because it could be tainted, or lack nutrients a baby needs.

The study is published in the journal Pediatrics.

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