Intermittent Fasting: A Diet Fad, or an Effective Weight Loss Tool?
By Anne Danahy MS RDN


Intermittent fasting, also known as time restricted eating, has been gaining attention as a method of weight loss and a way to improve metabolic markers. Although this might sound like the latest fad diet, it’s actually rooted in research. Here’s a look at the science behind it, and what you should tell patients who are interested in trying it.

Methods of Intermittent Fasting

Intermittent fasting (IF) is simply incorporating planned fasting periods into your day or week. It’s based on religious practices of voluntary fasting for periods of time, as with some Muslims who fast from sunrise to sunset each day for the month of Ramadan (1).

Observational studies of religious fasting have suggested that there may be me...