But as the person continues to live on a high starch and sugar diet, the insulin receptors on the cells are further damaged and eventually the pancreas can no longer make enough insulin to meet the increasing need. Treatment may be oral medications to force the pancreas to make even more insulin, or injected insulin itself may be used. There may be high blood pressure, heart disease, and there will be declining health. Second, it causes a thickening of artery walls and makes them less elastic. And finally, excess insulin stimulates the nervous system to release other hormones which raise blood pressure.
Excess carbohydrate raises triglycerides.
Cholesterol is made in excess amounts by the liver if insulin levels are too high. If you listen to the TV dietitians and try to reduce your fat and cholesterol intake, you will probably eat more carbohydrates to replace the lost calories. Things can only get worse unless your fat intake is extremely low - to a very unhealthful level. Ancient cultures and their skeletal or mummified remains have been studied many times. Ancient Egyptians were bread eaters.