Health Effects of High Insulin Levels
Why Excessive Insulin in Bloodstream From High-GI Carbs Causes Health Problems
Diet & Weight Control - My Low GI Diet - Food Energy - Guide to Carbs - How Carbs Digested
How Carbs Affect Blood Sugar - How Carbs Affect Insulin - Health Risks of Excessive Insulin
Low Carb Weight Loss Plans - Guide to Glycemic Index (GI) - Details - How GI is Measured
What Determines GI Value - Guide to Glycemic Load - GI of Meals - How to Reduce GI of Meals
Low GI Foods - How Much Carbohydrate Do We Need - Which is Best: Low Carb or Low GI Diet
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Insulin Levels and Health

As we have seen, when blood glucose levels get too high, insulin is released into the bloodstream by the pancreas to help disperse the glucose. The insulin transports the glucose to cells needing extra energy. The cells have "insulin receptors" positioned so that insulin can bind to them, facilitating glucose entry and utilization in the cells. Once inside the cells, the glucose is burned to produce heat and adenosine triphosyphate, (ATP) a molecule that stores and releases energy as required by the cell.

Overconsumption of High GI Carbs Maintains Excessively High Insulin

If we eat a diet that contains too many high GI carbs (carbs that are rapidly converted into blood glucose) we force our body to respond by releasing equally large amounts of insulin into our bloodstream to cope with the glucose. Over time this excessively high level of insulin can cause the "insulin-receptors" in our cells to become less sensitive to insulin.

Insulin Insensitivity

When cells become less sensitive to the effects of insulin, they accept less glucose, so more glucose than usual remains in the bloodstream. Result? The pancreas over-compensates by working harder and releasing even more insulin.

Health Consequences of Insulin Insensitivity

The combination of insulin-insensitivity and insulin over-production typically leads to one of two results:

Either, the pancreas gets worn out and insulin production slows down to abnormally low levels. Result? We develop type 2 diabetes. (About 30 percent of cases)

Or, the insulin-resistant patient doesn't develop diabetes (because the pancreas continues to produce sufficient insulin) but, instead, contracts hyperinsulinism (abnormally high levels of insulin in the blood), which can cause chronic obesity as well as high blood pressure, high levels of triglycerides, low HDL (good) cholesterol, heart disease, and possibly some cancers.

Low GI Foods Cause Lower Insulin Levels

This is why experts are beginning to recognize the health advantages of following a low GI diet. Because lower GI foods are converted into glucose much more slowly, causing less insulin to be produced.

This is not the last word on this subject, by any means. Research into insulin insensitivity and the relationship between insulin levels and obesity is ongoing. However, the overconsumption of high-GI foods (and high-fat fast-food) is a major cause of concern.

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