Revisiting the Efficacy of Intermittent Fasting on Weight Loss and Metabolic Health

October 14, 2021 by
Image Credit: CrossFit LLC

Intermittent Fasting (IF) is arguably the most popular niche diet that exists today. 

Proponents argue that not only is it superior for weight loss, but it confers a metabolic advantage for lean individuals as well, even when weight loss is not the goal. Within the CrossFit community, this idea is perpetuated by a number of high-profile athletes who promote IF. Most notably, Rich Froning who has mentioned this on numerous occasions when asked about his approach to nutrition. 

Outside of CrossFit, the diet has been popularized by miraculous weight transformations on magazine covers and celebrity endorsements. As someone who owns a nutrition company, we see plenty of current or former fasters come through our doors.

Before we dive into some of the science, I think it’s important to understand what intermittent fasting looks like. With intermittent fasting, you only eat during a specific time. Fasting for a certain number of hours each day or eating just one meal a couple days a week. It stands in contrast to traditional diets which tell you what not or what to eat and instead focuses on when. 

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