If I could only prescribe one supplement for a diabetes patient, I would prescribe R-alpha-lipoic acid. Alpha-lipoic acid has numerous benefits to the diabetic patient. It is a water- and fat-soluble antioxidant and has been shown to protect patients with fatty liver from liver disease progression. It can help reduce insulin resistance and has been shown to protect people with diabetes from developing complications in their nerves, eyes, and kidneys. R-ALA can prevent glycosylation of proteins, which reduces the A1C level. It is safe, although very rarely it can cause stomach upset. Alpha-lipoic acid is listed either as ALA or R-ALA. When listed as ALA, this means it contains two forms—the S isomer form and the R isomer form, in a 50:50 ratio. The key is to find a product that says it contains “R-ALA” instead of just “ALA.” A good daily working dose of R-ALA is 300 to 1,200 mg a day, which is the equivalent of 600 to 2,400 mg a day of regular ALA, if you buy a regular ALA listed product.
This content is provided as a service of the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), part of the National Institutes of Health. The NIDDK translates and disseminates research findings through its clearinghouses and education programs to increase knowledge and understanding about health and disease among patients, health professionals, and the public. Content produced by the NIDDK is carefully reviewed by NIDDK scientists and other experts.
Diabetes has grown to “epidemic” proportions, and the latest statistics revealed by the U.S. Centers for Disease Control and Prevention state that 30.3 million Americans have diabetes, including the 7.2 million people who weren’t even aware of it. Diabetes is affecting people of all ages, including 132,000 children and adolescents younger than 18 years old. (2)
A useful test that has usually been done in a laboratory is the measurement of blood HbA1c levels. This is the ratio of glycated hemoglobin in relation to the total hemoglobin. Persistent raised plasma glucose levels cause the proportion of these molecules to go up. This is a test that measures the average amount of diabetic control over a period originally thought to be about 3 months (the average red blood cell lifetime), but more recently[when?] thought to be more strongly weighted to the most recent 2 to 4 weeks. In the non-diabetic, the HbA1c level ranges from 4.0–6.0%; patients with diabetes mellitus who manage to keep their HbA1c level below 6.5% are considered to have good glycemic control. The HbA1c test is not appropriate if there has been changes to diet or treatment within shorter time periods than 6 weeks or there is disturbance of red cell aging (e.g. recent bleeding or hemolytic anemia) or a hemoglobinopathy (e.g. sickle cell disease). In such cases the alternative Fructosamine test is used to indicate average control in the preceding 2 to 3 weeks.

A couple of studies have found that cinnamon improves blood glucose control in people with type 2 diabetes. In the first study, 60 people with type 2 diabetes were divided into six groups. Three groups took 1, 3 or 6 g of cinnamon a day and the remaining three groups consumed 1, 3 or 6 g of placebo capsules. After 40 days, all three doses of cinnamon significantly reduced fasting blood glucose, triglycerides, LDL cholesterol, and total cholesterol.

Another popular ingredient in the Indian spice rack, curry leaves help to stabilize blood glucose levels and impact carbohydrate metabolism. An Indian study published in International Journal of Development Research studied in detail the effects curry leaves have on diabetes type 2. According to the research data, curry leaves contain a phytochemical that can help control blood sugar level in patients with Diabetes type 2 by reducing fasting and postprandial blood sugar level. Diabetic rats given a dose of about 12gm /day for a month revealed that curry leaves may treat diabetes by influencing carbohydrate metabolism and improving liver and kidney function. Also, the amazing antioxidant properties of curry leaves can boost pancreatic cell production, thereby improving insulin function.
If you have type 2 diabetes and your body mass index (BMI) is greater than 35, you may be a candidate for weight-loss surgery (bariatric surgery). Blood sugar levels return to normal in 55 to 95 percent of people with diabetes, depending on the procedure performed. Surgeries that bypass a portion of the small intestine have more of an effect on blood sugar levels than do other weight-loss surgeries.
The problem, of course, has not been solved — the sugar bowl is still overflowing. You’ve only moved sugar from the blood (where you could see it) into the body (where you couldn’t see it). It’s putting a band-aid over a bullet hole. So, the very next time you eat, the exact same thing happens. Sugar comes in, spills out into the blood and you take medication to cram the sugar back into the body. This works for a while, but eventually, the body fills up with sugar, too. Now, that same dose of medication cannot force any more sugar into the body.
Like the sulfonylureas, meglitinides is a class of drugs that work by promoting insulin secretion from the pancreas. Unlike the sulfonylureas, which last longer in the body, repaglinide (Prandin) and nateglinide (Starlix) are very short acting, with peak effects within one hour. For this reason, they are given up to three times a day just before meals.