Actually Arney, ketogenic diets have been debunked as a long term diet plan. But your synopsis is very accurate.

I think with the cop who fainted and left the show there was several factors other than diet that affected him, but the diet was a big factor.

He was as far as I could tell the heaviest of the group. It seems he was only getting an equal share of the food, which someone else has mentioned earlier in the thread here. Group dynamics had, IMHO, a lot to do with this but he should have got more food than the lightest person.

He was not used to the rigors of the terrain or environment. I believe he mentions this in one of his video journal entries. Between the 'hiking', extreme weather and probably some altitude sickness he was hurting for the start.

He was carrying more weight than anyone else in his pack at 60 lb. compared to people carrying 10-20 lbs less. I think two factors at play, 1st an assumption of the group based on his size he could/should carry more, 2nd as a police officer he is ingrained to help the weak and would assume more responsibility.

Having seen all the epi. one thing I have not seen is 'A' leader emerge or someone elected leader. Leaders yes, but this group is still being run by committee and no good can come of that.