Neem tree leaves have ingredients and compounds that lower blood glucose considerably. This property of neem makes it an excellent home remedy for diabetes. A glassful of neem leaves' juice when consumed first thing in the morning can benefit considerably. Regular and prolonged consumption can even trigger production of insulin and subside diabetes completely.
Grape seed extract has been proven to improve the conditions associated with this disease. Grape seed performed greatly in studies conducted in 2006 in Toyama Japan, in 2009 in Romania and also in Portsmouth UK. Grape seed was successful in protecting the liver cells and setting up defense mechanisms against reactive oxygen species produced by hyperglycemic conditions.
Does acupuncture for diabetes work? Acupuncture has many uses, and some research has suggested that it may work for diabetes, although how it would help has not yet been explained. Find out about the types of acupuncture that might help, the risks, and some evidence of its benefits. Anyone considering acupuncture should first check with their doctor. Read now
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.
Treatment for diabetes requires keeping close watch over your blood sugar levels (and keeping them at a goal set by your doctor) with a combination of medications, exercise, and diet. By paying close attention to what and when you eat, you can minimize or avoid the "seesaw effect" of rapidly changing blood sugar levels, which can require quick changes in medication dosages, especially insulin.

Change in fasting plasma glucose (A), 2 h post-oral glucose tolerance test (B), and homeostasis model assessment (HOMA-B) insulin secretion (C) during the 16-year follow-up in the Whitehall II study. Of the 6,538 people studied, diabetes developed in 505. Time 0 was taken as the diagnosis of diabetes or as the end of follow-up for those remaining normoglycemic. Redrawn with permission from Tabák et al. (80).

Genetic factors do play a role in any disease, but I put this factor last for a reason. Genetic predisposition to a given disease will increase the chances of getting the disease, but not in a vacuum. People with a strong predisposition to liver disease manage to avoid it, and some with a family history of heart disease remain heart-attack free. Even studies among identical twins show that in most cases, twins will get the same diseases, even in different environments, but sometimes they don’t. This means there are other factors involved (see above).

“Whether it be the patient saying for the fifth time ‘I will start watching my diet and start exercising,’ or a physician saying ‘the A1c is close to goal and I don’t really want to add yet another medication and copay, we will wait and see what happens in another 3 months,’ the end result is lack of intensification and A1c goal attainment,” Pantalone said.

Depending on the severity of diabetes, an individual can keep control on his/her disease using diet alone, diet & oral hypoglycemic drugs, and diet & insulin. While a mild diabetic can practice disease control with diet alone, a severe diabetic might need to practice diet control along with insulin administration. Whatever the method of controlling diabetes, routine and reliability should be strictly pursued. A person suffering from diabetes should have limited amount of carbohydrates and fats along with moderate amount of protein in the diet. High-fiber diet like vegetables, whole wheat products, oats, whole legumes prove to be more beneficial. Let us have a look at what all should be had and what all should be avoided.
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.
According to studies, cinnamon may have a positive effect on the glycemic control and the lipid profile in patients with diabetes mellitus type 2. This is because it contains 18% polyphenol content in dry weight. This popular Indian spice can improve insulin sensitivity and blood glucose control. According to a study published in Journal Of The American Board Of Family Medicine, “cinnamon lowered HbA1C by 0.83% compared with standard medication alone lowering HbA1C  0.37%. Taking cinnamon could be useful for lowering serum HbA1C in type 2 diabetics with HbA1C >7.0 in addition to usual care.”
Relying on their own perceptions of symptoms of hyperglycemia or hypoglycemia is usually unsatisfactory as mild to moderate hyperglycemia causes no obvious symptoms in nearly all patients. Other considerations include the fact that, while food takes several hours to be digested and absorbed, insulin administration can have glucose lowering effects for as little as 2 hours or 24 hours or more (depending on the nature of the insulin preparation used and individual patient reaction). In addition, the onset and duration of the effects of oral hypoglycemic agents vary from type to type and from patient to patient.

These are a relatively new class of drugs used to treat type 2 diabetes. They are oral medications that work by blocking the kidneys' reabsorption of glucose, leading to increased glucose excretion and reduction of blood sugar levels. The US FDA approved the SGLT2 inhibitors canagliflozin (Invokana) in March 2013 and dapagliflozin (Farxiga) in January 2014.