A couple of thoughts:
-Very small sample size (n=6), though the error bars are remarkably small for having 2 subjects per condition
- They were limited to daily activity... i.e. no physical stimulus for growth. May or may not have an effect on protein absorption. This would definitely be interesting to play with.
Their results say that if you are not exercising and eat low carb, you don't absorb as much protein. Seems pretty intuitive. I don't think they prove that insulin is a necessary mediator of protein absorption, but repeating in diabetics/mouse model could do so.
S. Emile Hughes
Current Lifts (December 2010): BW 166lbs; 285lb Bench Press; 315lb Squat; 175lb Overhead Press; 405lb Deadlift; 205lb Power Clean