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Friday, November 24, 2006

The Unrecognized Disease: Insulin Resistance

Before discussing what insulin resistance is, it might be useful to explain exactly what insulin is, because there is a very low awareness among most people about this hormone. We hear the term "insulin-dependent diabetes," but we don't really know what insulin is.

The hormone insulin, which is produced by the pancreas, helps the body use glucose, or blood sugar. Insulin binds with receptors on cells, much like a key fitting a lock. Insulin resistance is a condition where, to continue the metaphor, the doors have too many locks. The cells cannot accept the insulin.

When the insulin is not accepted by the cells, the pancreas secretes more insulin to maintain healthy blood sugar. The more insulin resistance, the more insulin the body creates. In about 1/3 of the people with insulin resistance, when the cells do not respond to the higher levels of insulin, glucose builds up in the blood. This high blood glucose is known as Type 2 Diabetes, and is a direct result of insulin resistance.

Not everyone with insulin resistance develops diabetes, and researchers have not discovered what causes some individuals to develop the disease while others do not.

However, the risk of diabetes is clearly high for those with insulin resistance.

While insulin resistance is still not widely known, it is becoming more recognized as more people in the U.S. become obese and/or physically inactive, and this is being reported more by news organizations and healthcare agencies.

Obese/physically inactive people are more likely to be insulin resistant, which can lead to an increased level of blood fat, or triglycerides, and a decrease in HDL, which is the good cholesterol. These two imbalances can increase the risk for heart disease.

Thus, insulin resistance can directly influence heart health, and that has become a focus for health reporting.

Another problem related to insulin resistance is Syndrome X, a collection of risk factors for heart disease, including hypertriglyceridmia (high blood lipid), low HDL-cholesterol, hyperinsulinemia (high blood insulin), and often hyperglycemia (high blood glucose) and hypertension (high blood sugar). All of these conditions are influenced by insulin resistance and the group together poses a high risk for heart disease.

Insulin resistance is present in almost all individuals with Type 2 diabetes and in many with high blood pressure, cardiovascular disease, and obesity. Women with polycystic ovarian disorder are generally insulin resistant. About 20-25% of "healthy" people may actually be insulin resistant.

There are natural treatments which can greatly decrease insulin resistance and the health risks that go along with being insulin resistant.

Vitamin E improves glucose metabolism and insulin absorption.

Chromium lowers glucose levels as well as cholesterol levels, and is best taken as chromium picolinate.

The B Vitamins, especially B6 and B12, and folic acid, help prevent complications in those with diabetes.

Magnesium deficiency is one of the most common health problems, and since diabetics especially do not absorb magnesium well, this supplement is recommended for anyone at risk for diabetes.

Lipoic acid, which is a powerful antioxidant, also improves insulin sensitivity and is a must for anyone with insulin deficiency.

Vanadium is believed by some experts to be the most important supplement for insulin resistance. It activates the insulin receptors in the same way insulin does, and can effectively lower glucose levels.

American ginseng, in recent studies, has been proven to prevent the spike in blood sugar that follows a meal.

Because many diabetics are deficient in the hormone DHEA, fish oil has been found useful in blood sugar control.

Supplements, a healthy diet, and regular exercise can greatly increase overall health and reduce insulin resistance, also reducing the risks of diabetes and heart disease.

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