Which substance does insulin help to absorb into the cells?

Insulin is a hormone that plays a critical role in regulating blood glucose levels in the body. When we consume carbohydrates, they are broken down into glucose, which enters the bloodstream. To help cells absorb this glucose for energy or storage, the pancreas releases insulin. Insulin facilitates the uptake of glucose by binding to insulin receptors on the surface of cells, which triggers a cascade of events allowing glucose transporter proteins to transport glucose into the cells. This process is vital for maintaining normal blood sugar levels and providing energy to cells throughout the body.

Proteins and fats, although important macronutrients, do not directly require insulin for their absorption into cells. Instead, they are metabolized through different pathways. Vitamins are absorbed through the digestive system and do not rely on insulin for cellular uptake. Therefore, insulin’s primary function is associated with glucose absorption.