A new study comparing three popular diets—intermittent fasting, time-restricted eating, and continuous calorie cutting—found that all can help people with type 2 diabetes lose weight and lower blood sugar. But one diet stood out: the 5:2 intermittent fasting plan, where participants eat normally five days a week and restrict calories on two. It led to better results in fasting blood sugar, insulin response, and sticking with the plan.