"Diet" is a subject that I've studied for most of my life, and I'm no youngster. The same arguments about dietary composition have been going on for at least 150 years. There may be many opinions but for my part, I'd rather listen to the scientific evidence. I was medical director of an obesity treatment clinic for many years. The low carbohydrate (CHO), optimal protein intake diet was often effective for weight loss…
The archaeological record shows that hunter-gatherers had an abysmally short lifespan, and were far from healthy... Pretty much every positive development in human health history happened after the advent of agriculture. Hunter gatherers were lucky to live past 30...
I'd guess your 'low carb' diet still had more vegetables and grains than most hunter gatherers had access to...