I guess one can formulate a diet that doesn't include carbohydrates based on what their health target is. I'm no nutritionsit, but my concern is can everyone follow this ? May be not everyone, of course some can and some do and have been following zero-carb diet for a long time. People follow diets that works best for their own individual health tragets. Everyone is diffrent and have diffrent health needs. So I do not judge anyone's choice.

Another concern I have and am trying to understand is this-- on a zero-carb diet, one tends to starve the fibre-fermenters in the gut and some of these members begin to feed on mucin as a source of carbohydrate. This affects the colon epithelelial barrier that can lead to inflammation dut to pro-inflammatory response.