Insulin - function, effect & importance for blood glucose metabolism
Insulin regulates blood sugar levels & plays a key role in metabolism. Find out more about its function, diabetes & ways to support it.
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Insulin is a vital hormone that is produced in the beta cells of the pancreas.
Insulin plays a central role in metabolism, particularly in the regulation of blood glucose levels. After eating, the glucose concentration in the blood rises. In response, the pancreas releases insulin, which acts like a key that opens the cells so that glucose can be used as an energy source or stored.
Insulin binds to specific receptors on the cell surface, which transports glucose from the blood into the cells, especially in muscle and fat cells. In the liver, insulin promotes the storage of excess glucose in the form of glycogen and inhibits the release of glucose into the blood. In this way, insulin ensures that the blood glucose level remains within a healthy range.
Dysfunctional insulin action can have serious consequences. In type 1 diabetes, insulin is not produced sufficiently because the immune system attacks the beta cells of the pancreas. In type 2 diabetes, insulin is often present in sufficient quantities, but the cells are no longer sensitive enough to it, which is known as insulin resistance. Both conditions lead to an increased blood sugar level (hyperglycaemia), which can lead to long-term complications such as cardiovascular disease, nerve damage, kidney damage and eye problems.
In addition to its role in glucose metabolism, insulin has other functions. It promotes the building of fat and muscle mass by stimulating the synthesis of fatty acids, proteins and glycogen and at the same time inhibiting their breakdown. An imbalance in the insulin balance can therefore not only affect blood sugar, but also fat and protein metabolism.
The treatment of diabetes often involves the use of insulin preparations. Type 1 diabetics are dependent on external insulin administration, while type 2 diabetics may also require insulin in the later stages of the disease. Modern insulin therapies use different forms of insulin, such as fast-acting, long-acting or mixed insulins, to meet the individual needs of patients.
In addition to medical therapy, a healthy lifestyle is essential for regulating insulin levels. A balanced diet with complex carbohydrates, sufficient exercise and avoiding obesity can help to improve the insulin effect. In addition, substances such as alpha-lipoic acid and lactoferrin can support insulin sensitivity by promoting glucose uptake by cells and reducing oxidative stress.
Insulin is not just a hormone, but a key regulator of metabolism and an essential component of balance in the body. Understanding its function and consciously supporting it is crucial for maintaining health.
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