You're going to destroy your kidneys. Our bodies are evolved to eat mostly carbs, not protein. It may make your head "clear," but just because you feel good doesn't mean its a genuine improvement to your physical health.
Our bodies evolved to survive -- whether with or without glucose. And you liver makes whatever those your body needs, from far, if necessary. Also keep in mind, industrialized wheat products would've been hard to come by back in the stone age -- if you ate at all, depending on whether your hunt was successful.
Your analysis is off, the human body is not infinitely adaptable. There are limits; running 5 miles a day is not going to completely offset heavy alcohol and tobacco consumption, but those with BMIs in the range of obesity who run 30 miles a week are far healthier than those who have a normal one but practice no physical exercise.
We are perhaps experiencing, currently, a broad shift in the evolutionary history of humanity; I'm not an AI nut but one could argue that one reason why health is such a concern is because there are a number of adaptations at odds with one another at the social and biological levels. One could imagine that the completion of this arc would result in a new stasis of living patterns in the same way that hunter-gatherers persisted for almost 2 million years, and our current moment is just a brief one of upheaval.
That allows for a wide variety of veggie choices, as well as a some wiggle room for modest servings of nuts, legumes, beans, etc
But basically there's no room at all for stuff like breads or rice or potatoes or sweetened drinks except as the finest accents. Never as the centerpiece of a meal.
It's a very different way of living and eating, but can feel extremely invigorating and seems to be broadly healthy for most people.
also would be interesting to know your time frame for how long you've done this - to rule out the honey-moon phase
I used keto the first time I lost weight, and it also somehow cured my binge eating forever. But it's hard to keep up long term.
it's also extremely convenient cheap and measurable to eat rice at home