Carbohydrates Causes Diabetes Mellitus

I am Robert Su, M.D. Welcome back to my special podcast program for you. In my last discussion with you about carbohydrate restriction, I told you to avoid eating carbohydrate foods, or, at least, to not eat very much of them for preventing you from gaining weight and becoming diabetic. During the discussion, I also told you that eating too many carbohydrate foods would raise your blood sugar level. If you raise your blood sugar level, you would raise the level of inflammation inside your body. Then your body would begin to develop diseases including diabetes mellitus.

Today, I am going to discuss why carbohydrate foods can cause diabetes mellitus. When you heard what I just said that carbohydrate foods could cause diabetes mellitus, you probably would tell me that you thought diabetes mellitus is a genetic disease. No, it is not the case. You may still want to tell me that one of my friends is a diabetic, his parents are diabetic, his brothers and sisters are diabetic. And, his wife and children are diabetic too. But, just wait a minute, why is his wife a diabetic? His wife is not genetically related to his family! You may wish to tell me that his wife’s family members are diabetic too. Well, it may look like some genetic connection between all the people in their families. But, why did not we have so many diabetics many decades ago or a couple of generations before us, now we have so many more people who become diabetic? An increasing number of diabetics during a period of a couple of decades is not a genetic disorder. Rather, this is an epidemic disorder! Just let me tell you about the development of diabetes mellitus.

Diabetes mellitus is a disease, with which the patient has sugar in his urine. It has been called sugar-urine disease for more than a thousand years. This is because the level of blood sugar has risen to the point that the kidney cannot reabsorb the sugar excreted in the urine back into the blood circulation. That means that the body cannot keep the blood sugar level down, which is supposed to be the function of insulin. Insulin is a hormone, which is produced and secreted by beta cells of the pancreas. Apparently, beta cells are not produce or secret enough amount of insulin like they did before, and are unable to bring down the level of blood sugar. This explains why one had been healthy before his doctor told him of the diagnosis with diabetes mellitus. But, why would the diabetic patient’s beta cells lose their ability of producing and secreting an amount of insulin like which before he was found diabetic.

As I discussed about carbohydrate restriction, when your blood sugar level goes up, the level of inflammation inside your body would go up too. I also told you that inflammation is the cause of disease development including damages to beta cells of your pancreas. When damages of the beta cells happen, some of the beta cells would die, others would try to work as hard they used to. However, the number of healthy beta cells has decreased and those damaged ones cannot work in their full capacity, thus, the production of insulin has decreased too. Also, I suspect the insulin, which is produced by the damaged beta cells, may be abnormal and cannot help other cells take in glucose from the blood circulation as the normal insulin would do.  Therefore, your blood sugar level would stay increased as which a diabetic’s does.

I have also told you that carbohydrate foods are the main supplier for your blood sugar. If you eat more carbohydrate foods, your blood sugar level will go up, the level of inflammation in your body will go up too. Consequently, disease such as diabetes mellitus will start to develop inside your body. Now, you know that diabetes mellitus is not really a genetic disorder, but is a disease as a result of eating too many carbohydrate foods, especially those refined, processed foods including grains, grain products or flour products, starchy foods such as potato, sweet potato, and sugary foods and beverages including fruit juice with added sugars or high-fructose corn syrup. Studies have shown that high-fructose corn syrup, sugars, cola are associated with the risk of obesity, diabetes mellitus, and other diseases including cancers.

With all the facts that I have provided you, I believe you now understand that diabetes mellitus is preventable if you avoid carbohydrate foods, or, at least, restrict carbohydrate foods to that as little as possible. If you have become diabetic, you still have the chance to lighten the severity of the disease, or even reverse the disease, depending on the stage of diabetes mellitus you have reached. It is the sooner the better in treating diabetes mellitus by restricting the consumption of all carbohydrate foods except the leafy green vegetables, if necessary. Clinically, it is the best approach in treating diabetes mellitus. Using diabetic medication and insulin for treating diabetes mellitus is only slowing down the deterioration of the disease and the progression of complications. However, medication and insulin can never stop the disease and its complications.

As I mentioned in my last discussion about carbohydrate restriction, if you follow my advice of avoiding carbohydrate foods, you would lose weight and keep your blood sugar level steady within normal range around 100 mg%. If you do so, your diabetes mellitus will either be reversed or improved that you would need little or no diabetic medication for the rest of your life.

I also told you in my last discussion that an individual with high blood sugar could cause other diseases even before he is found to be diabetic. You may think if you are not diabetic, why should you have other diseases caused by high blood sugar? I do not blame you for that you are unsure the association between high blood sugar and diabetes mellitus as well as other diseases. We have a set of numbers for blood sugar tests, with which we determine if one is diabetic or not. The set of numbers for blood sugar tests is only for fasting and two hours after meal or after a glucose tolerance test. Its numbers for blood sugar tests do not detect abnormal blood sugar level other than the two time points, which are fasting and two hours after meal or after glucose tolerance test. Therefore, your blood sugar is probably abnormally high most of the time but not at the fasting or two hours after meal or after glucose tolerance test. As a result, your routine blood sugar tests would not correctly show you have already had problem with your beta cells of the pancreas. At the same time, you may have had diseases inside your body.

The best way to help you find out if your foods are healthy to you and if your beta cells are working properly is to take a serial blood sugar tests in related to one of your typical meals. You start the tests at fasting or before meal first. Then you take a blood test every 15 minutes after the first test at fasting, even if you have not finished your meal. You continue to test for at least two hours after you start your meal. Then, you will see how your blood sugar level changes in related to the amount of carbohydrates in your meal and how your beta cells produce insulin in response to the meal. The serial blood sugar tests will let you learn if your foods are healthy. The tests will also let you find out  if your beta cells are still healthy, or you have to take necessary steps for preventing you from becoming a diabetic.

Having known how carbohydrate foods affect your health and cause diabetes mellitus, you should know what the first thing you want to do for preventing you from becoming obese and suffering with diseases. Yes, you are correct. You want to restrict carbohydrate foods now for the sake of good health for the rest of your life.

I hope you continue to do everything you can for your and your family’s good health. If you have question about what I have told you, please let me know by writing me at or at the forum of my website, Thank you very much for listening to my podcast.