<http://schema.org/alternativeHeadline>
"Another reason to avoid pre-packaged, processed foods: People who eat more of them have higher levels of unhealthy toxins in their bodies."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/food/healthy-eating/blogs/chemicals-in-food-packaging-could-affect-your-health-decades-later>