Can Calorie Restricting Lead to Longevity?

You've got to feel hungry for this to work, Professor Speakman says. Maybe what you could do is take something that switches on MPY and then you would switch on all these things that are related to lifespan,. But you wouldn't actually be eating any less food. So in conclusion, I think we can pretty safely say that calorie restriction may or may not lead to life extension.