Imagine a sweet treat that doesn’t make you fat -- indeed is positively good for you -- and that you can indulge in even if you’re diabetic. Peru, the land that gave the world potatoes, is home to yacon, a tasty root that scientists say is good for the gut, potentially safeguards against cancer, helps absorption of calcium and vitamins and can lessen the blood sugar peaks from eating sweet food that are a problem for diabetics.
