When I read Dr Atkins '72 book, I'm almost sure he said not to worry about counting calories. (I must try to find it.) Gary Taubes and others, more or less debunk calorie counting. I clicked on the 'Keto Calculator' site, entered my personal data and it tells me that for weight loss I should have only 1226 Kcal's per day. I know, that more often than not, I exceed this per day yet my carbs average less than 20.