The Insulin Connection

Until recently, carbohydrates were ignored as a health issue. They are at least as important, and probably more so, than fats in determining weight and cardiovascular fitness. The key to carbohydrates' influence is insulin. Insulin is a hormone secreted by the pancreas in response to a carbohydrate-heavy meal. It is impossible to live without it, but it is possible to live much better without too much insulin. Insulin has many actions, but some of the most important affect body fat, cholesterol levels, and cardiovascular health. Insulin y facilitates the transport of sugar across cell membranes y promotes conversion of glucose to glycogen and free fatty acids in the liver y promotes storage of free fatty acids as triglycerides (fat) and fat cells y blocks hormone-sensitive lipase (fat-burning enzyme), and y stimulates the production of cholesterol in the liver

The bottom line is that insulin, certainly in excessive amounts, causes the body to produce and store fat as well as produce inordinate amounts of cholesterol.

Insulin is now recognized as an important factor in the development of cardiovascular disease. It is known to act directly on the walls of arteries to produce "atheroma" — atherosclerotic plaques — that can narrow the blood vessels, limit blood flow and oxygen delivery, and result in strokes and heart attacks. Insulin can also cause left ventricular hypertrophy (enlargement of the heart).

Diabetes 2

Diabetes 2

Diabetes is a disease that affects the way your body uses food. Normally, your body converts sugars, starches and other foods into a form of sugar called glucose. Your body uses glucose for fuel. The cells receive the glucose through the bloodstream. They then use insulin a hormone made by the pancreas to absorb the glucose, convert it into energy, and either use it or store it for later use. Learn more...

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