What is the role of insulin?

Insulin plays several critical roles in the body, primarily related to metabolism and energy regulation.

1. Regulates Blood Sugar: Insulin is secreted by the pancreas in response to eating, especially carbohydrates. It helps cells absorb glucose, which lowers blood sugar levels.

2. Growth Factor: Insulin acts as a growth factor, promoting overall cellular growth and functions. However, chronically elevated insulin levels can interfere with the brain's ability to clear out amyloid beta, a protein associated with Alzheimer’s disease 1.

3. Fat Storage and Metabolism: Insulin promotes the storage of excess glucose as fat. It is involved in nutrient uptake and storage, which is critical for energy balance. High insulin levels can lead to insulin resistance, making it difficult for the body to use glucose effectively, potentially leading to type 2 diabetes 2.

4. Interaction with Hormones: Insulin interacts with other hormones, including growth hormone. While growth hormone promotes fat burning, it can also lead to insulin resistance due to increased fatty acids in the blood. This interaction can complicate the balance of glucose and insulin levels in the body 3.

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     1

     Insulin's Hidden Impact

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     2

     Insulin and Fat Loss

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     3

     Growth Hormone Insights

     00:47:39
     

Understanding the balance and role of insulin is essential for managing metabolic health, glucose levels, and overall energy balance.