Revisiting Phelan's mathematical model of calorie restriction

[Guest guest]

Recall that, a couple years back, Phelan published a mathematical model

of caloric restriction, one of the results of which was that even

serious caloric restriction in *humans* will extend lifespan by only 3

to 7 percent. Is anyone aware of a subsequent scientific critique of

his mathematical model? Or does it stand largely unchallenged at this

point?

Thanks,

-Dave