Carb Cycling diets – unworthy hype or a true dieting phenomenon?

Carb cycling diets are based around rotating between high carb, moderate carb and low/no carb days. The idea is that eating healthy carbs on specific days keeps your metabolism revved up, and sticking to mostly protein, vegetables and fat on low/no carb days will keep insulin levels low enough to allow you to burn fat whilst maintaining muscle mass.