Low-carb diets have been popular for centuries but what is it about the the diet that makes it effective? Is it the reduction insulin or that it's simply harder to eat as many calories while following a low-carb lifestyle. Learn the pros and cons of going low-carb and if it's right for you.

Here's the low-down on 4 of the most popular diets including keto, paleo, whole30, and intermittent fasting. Do they actually work for weight-loss? And should you try them?