How much would you pay to run your next race 2 percent faster? If you can run a 5K in 30 minutes, that’s a 36-second improvement; in the context of a 4-hour marathon, you would save almost 5 minutes.

The ketogenic or keto diet is a very low-carb, high-fat diet. Being on the diet for several days puts your body into ketosis, a nutritional state characterized by raised blood ketones and weight loss ...

Believe it or not, that's what some followers of the ketogenic diet are doing to ensure they shed pounds. Some background: The ketogenic diet is the hottest low-carb diet right now, with proponents ...