Why does insulin in the blood increase after meals?

Answer 1

Insulin controlls how the glucose injested is turned into fat. It also controls how much is removed to be turned into glycogen in the liver and muscles. It controls the amount of glucose transported to cells and respiration. Therefore, when we eat our pancreas supplies more insulin to be able to cope with the levels of sugar that we take in after meal times.

Diabetics can produce too much insulin or too little insulin. Insulin injections need to be taken before meal times (consult a doctor) for diabetics in order to get the sugar to the cells. If the insulin is not administrated then the body will use reserves of glucose from the fat and muscles to respire and grow etc.

Answer 2

Insulin increases after meals because it is released by the pancreas in response to rising blood sugar levels after eating. Its role is to facilitate the uptake of glucose from the bloodstream into cells, where it can be used for energy production or stored for later use. This helps to lower blood sugar levels back to a stable range.