Scottish/English/Danish/Jewish(of unknown geographic origin, but guessing somewhere with sun judging from photos...long story).
My carb tolerance seems quite low, but I am also one of those "metabolically deranged" folks, and I wonder if my tolerance will change in the future. I don't have any negative responses to ketosis induction. I've never gone more than a few weeks ZC but feel almost superhuman when I do. I feel dizzy if I eat sweets by themselves.