Individuals on a ketogenic diet consuming 1600-1700 calories per day can be asymptomatic, unlike individuals in starvation experiments on high-carbohydrate diets at similar or lower calorie levels who experienced severe psychological distress.

“I mean I've seen lots of patients who and in and this has even been published who on sixteen seventeen hundred calories a day of a ketogenic diet seemed completely fine and yet Ancel Keys as patients at 1400 1500 1600 calories of basically very heart high carbohydrate diet very low fat diets lost their minds”