"Boundless energy". Bwahaha. Mark my words, in 15-20 years studies will emerge showing the dangers of keto diet unless its drastically needed for health reasons. Sure, refined sugars are bad, but all sugars? You are going to get rid of fruit, the most nutrient packed food of essential vitamins, antioxidants, fiber and energy for....? You are going to intake more protein, which will inevitably mean more iron, which increases free radicals.
Sure cholesterol is good for you, protein yah, great n all, but tricking your body into starvation mode and undergoing ketosis, which spurns out ketones lowering your blood pH levels (bad!). Sure it wont be as bad as DKA, but lowering it a smidgen for a prolonged time is bad. Acid corrodes. Corroding veins? Bad. What does the body do with corroding and inflamed veins? Tries to repair it. Cholesterol becomes trapped on the inflamed parts....aaannndd well you see where this is going?
Stress is inherently bad, and this is not the psychological stress, this the physical stress on the body, where stress = cortisol. Cortisol is good, but prolonged cortisol? BAD