One factor in hunger seems to be the increase in ________, which causes blood sugar levels to eventually drop several hours after we eat.

A) cholesterol
B) lipoproteins
C) insulin
D) glucose

Insulin is a hormone produced by the pancreas that regulates glucose levels in the blood. After we eat, our blood sugar levels rise, and insulin signals our cells to absorb glucose for energy or storage. However, if we consume too many sugar or carbohydrate-rich foods, insulin can be overproduced, causing our blood sugar levels to eventually drop several hours later, which can lead to hunger.