they don't.
the natural diet of the Sa'ami consists of fish, reindeer and lingonberries.
your liver produces sugar just like that of the Sa'ami.
Are you telling me that you believe that HFCS is simply fructose? I mean, you can insult that reference all you want, but answer that question. Are they the same?
And no, I don’t think people require sugar. I actually eat a low carb sugar free (most of the time, I admit an occasional lapse) diet.