"Worried Priests in the Temple" syndrome: they're obviously circling the wagons.
Reminds me of the arrogance of the Cardinals and Bishops in Galileo's day, who REFUSED to look through his telescope (which they branded a "devil's instrument") to obtain observational evidence that the moon was a cratered, rather than perfect celestial body ("sacrilege! - all heavenly spheres are perfect" - low fat dieting is perfect!) and moons orbiting around Jupiter (again, sacrilege! all spheres orbit around the Earth, which is the center of the universe, you know, just like the low-fat diet paradigm).
And for goodness sake, "don't confuse the dietician-priests with the facts". But worry not, the Vatican recently admitted they were wrong about persecuting Galileo - and hey - it only took them half a millenia to admit it. At least Dr. Atkins wasn't placed under House Arrest like Galileo was.