<http://schema.org/alternativeHeadline>
"People on diet can eat whatever they want for 5 days a week, but must then fast for 2. On the fasting days, dieters must eat one-fourth of their daily calories."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/food/healthy-eating/stories/fasting-diet-fad-could-be-unhealthy>