The production and consumption of glucose, and hence, the blood sugar level, are controlled by a functional endocrine equilibrium.
The constancy of the blood sugar level is maintained by a complex physiological mechanism, a homeostatic mechanism of the same order as those which maintain the body temperature, the blood pressure or the heart rate at normal levels and control many other functions.
Production and consumption of carbohydrates is so well regulated that there is a constant blood sugar level; any accidental increase or fall in blood sugar is rapidly compensated.
The nutritive substances used in greatest quantities by mammals are carbohydrates.
