Whole Foods Market plans to stop selling Chobani Greek yogurt in 2014 because the product contains genetically modified organisms (GMOs), Fox News reports.

While Chobani markets its products as containing only natural ingredients, the company's use of milk comes from dairy cows fed GMO animal feed.

There is some research that demonstrates their downsides, though: The latest animal studies indicate that genetically modified foods have toxic effects on the digestive and reproductive systems.

They have also been linked to many food allergies, according to the University of Medical Sciences in Poland. However, "for anything to be reasonably deemed dangerous, you'd need abundant and consistent evidence in both animal and human trials," Alan Aragon, Men's Health's nutrition advisor, said "In this case, the findings just aren't there."