The New Scientist is carrying a piece on an interesting dietary study in mice. Scientists claim some benefits of calorie restriction are observed in a diet that alternates double portions with fasting. The CR Society is dubious on this count; there has been some discussion there in past weeks on this topic. My advice is to be a late adopter. Calorie restriction has decades of proven science behind it. This article comes from a single recent study. Always go with the weight of evidence and wait for proof before attempting anything that will affect your health.