It is possible to achieve ketosis through multiple dietary approaches, but not all approaches constitute a well-formulated or optimal ketogenic diet.

“literally you can eat Twinkies and be on a ketogenic diet people's minds are like what the hell do you mean I'm like cool if you eat two Twinkies per day and that's all you eat and you go do two CrossFit workouts per day I guarantee you your body will be in ketosis I said but is that a well-formulated ketogenic diet or is that gonna be optimal to any aspect of human function longevity and health absolutely not”