Selling breast milk is big business.
Each year tens of thousands of women post ads on websites, offering their extra milk for $1 to $3 an ounce: "My rich milk makes giants!" promises one seller. "Organic and Gluten Free Breastmilk," claims another. Then there's this one: "470 oz. of breastmilk must go!!!"
But some women online aren't delivering what they're advertising.
Scientists at Nationwide Children's Hospital in Columbus, Ohio, analyzed 102 samples ordered from popular websites and found about 10 percent of them were "topped off" with cow's milk.