"is a crank" is really far from "has some controversial or heterodox views"
I'm not arguing that everything Lustig says is correct, on the contrary, I've gone out of my way to criticize him. My point in this conversation is that saying a reputable scientist, at a reputable institution, doing reputable research is somehow a crank... is bananas.
If he actually said it's the same impact, that is much closer to crank than controversial without a few pieces of really strong evidence.
And the counterargument you had for calorie restriction described a situation that is not calorie restriction.
I'm not saying he's a crank for sure, but my evaluation of him is riding on whether loeg's description of his claims is accurate, not the evidence you brought, because that evidence really does not support the plausibility of those claims.
I'm not arguing that everything Lustig says is correct, on the contrary, I've gone out of my way to criticize him. My point in this conversation is that saying a reputable scientist, at a reputable institution, doing reputable research is somehow a crank... is bananas.