Negative+Feedback+Loop+(Parathyroid+gland+and+calcitonin)

When the blood glucose level is low, insulin is released. You then eat food and the more you eat, the higher your blood glucose level becomes. This turns off glucose.
Negative Feedback Loop Negative feedback regulates almost every hormones secretion. It is the process of products from a reaction inhibit the production of the enzyme that helped create them.

(Endocrine System) [|Endocrine Systems and Feedback Cycles]

Diseases
=== Goiters can form when there is not enough iodine in a person's diet. This causes the thyroid to be unable to synthesize T3 and T4 hormones. This lack of hormones disrupts the thyroid activity's feedback loop. This causes enlargement of the thyroid. ===