In the beta cells, insulin is created first as a big molecule called “proinsulin.” Proinsulin is broken into two pieces: insulin and C-peptide. With each meal, beta cells release insulin to help the body use or store the blood glucose (blood sugar) it gets from food. These islets also have alpha cells, which make glucagon, as well as delta cells.
Inside the pancreas, the hormone insulin is made in the beta cells, which are part of the Islets of Langerhans.
Insulin is available in different strengths the most common is U-100.There are different types of insulin depending on how quickly they work, when they peak and how long they last.
