Skip to main content Is keto really better for weight loss? A new study takes a closer look at the diet. Tamar Haspel, The Washington Post Jan. 21, 2021 FacebookTwitterEmail There's a lot of competition for the most contentious issue in weight loss, but I'd have to give the nod to ketogenic diets. Now a study about them sheds some interesting new light - although I'm not holding out hope for kumbaya. First though, a brief overview of the theory of ketogenic diets. When you eat carbohydrates, your body processes them with insulin, which shuttles blood glucose into fat stores, leaving you hungry. If you don't eat many carbs, your body starts running on ketones, which your liver manufactures from fat - less hunger, less fat accumulation. Or that's the theory, at any rate.