While the biological mechanisms of blood-sugar control are indeed complicated, the basics are quite simple: blood-sugar is an equilibrium between supply and consumption. Sugar, specifically glucose, is biology's primary fuel. The drawing above illustrates how blood-sugar is a simple balance between sugar intake and the "burning" of it as a fuel. Consuming foods from which sugar is extracted or synthesized is the fuel supply - represented in the left-hand scale pan. The right-hand energy pan represents the sugar flowing in the blood stream ready for "burning" or conversion to energy. As the sugar is burned, blood-sugar becomes lower. Just as the fuel in you...
