So from what I can gather, blood sugar levels are regulated by a negative feedback loop in order to keep the body in homeostasis. Your hypothalamus has glucose detecting neurones. When your blood sugar level is high the hypothalamus stimulates insulin production. Insulin converts glucose to glycogen. This decreases the blood sugar level and the change is detected by the hypothalamus. It then stops stimulating insulin production. This 'switching off' of the hormone is negative feedback. I think this is how it works but it was difficult to put it all together.
Yo u can see the negative feedback loop in this graph. The graph displays how Dr. Roods Blood sugar reacted after consuming a candy bar and a soda. You can tell by the upside down U shape of the graph that while the sugar first made it go up the change was then leveled by the insulin response. Through this process the body is able to reach homeostasis.
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