Well, I've definitely gone in both directions. As a powerliftter, I had to carb-it-up, because my muscles needed a decent amount of carbs in order to repair and rebuild and grow stronger. But for the year before I began powerlifting I had really learned about and focused on eating a low-carb, low-glycemic diet, and I felt awesome.

Yes, you can balance your diabetes and eat low carb, and some people have no trouble managing their weight and body fat while eating a lot of carbs. This is their...