An anonymous reader writes: Can humans live up to 150 years by eating a “calorie restricted” (CR) diet? Lab animals of all kinds live up to 50 percent longer on CR diets. And human studies (like CALERIE) seem to indicate that CR extends life in humans too, though it’s too soon to tell by how much. Question is: Would you want to live 150 years? Brian M. Delaney, president of Calorie Restriction Society International, says yes, though the weight loss that goes along with CR is an unfortunate consequence.