What is Intermittent Fasting and is it Beneficial ?

Intermittent fasting refers to an eating style where you eat within a specific time period and fast the rest of the time. Some say intermittent fasting is an effective way to lose weight, others say it's not safe. Bridgette Shay RD and Emily Claremont, RD, both registered dietitians at The University of Vermont Medical Center talk about the new trend.