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.

Diabetes: The differences between types 1 and 2 There are fundamental differences between diabetes type 1 and type 2, including when they might occur, their causes, and how they affect someone's life. Find out here what distinguishes the different forms of the disease, the various symptoms, treatment methods, and how blood tests are interpreted. Read now
Known as gurmar, or “sugar destroyer,” in Aryuvedic medicine, Gymnema has consistently shown benefits in patients with diabetes. The most active part of Gymnema seems to be gymnemic acids, and many products list the percentage each capsule contains. Analyses of the herb for diabetes have shown it may be helpful in lowering high blood sugar levels. It can delay glucose absorption from the intestine. It was shown to regenerate pancreatic tissues, allowing more insulin to be produced, and help regulate insulin secretion. It also increases the utilization of glucose by the cell, reducing insulin resistance and decreasing appetite, especially for sweets. I usually use it in capsules, or in liquid form in some patients. Due to Gymnema having a very similar shape to glucose, it can fit into the taste bud receptors for sugar; it thus has unbelievable power to actually prevent the taste of sweets in the mouth for up to 1.5 hours. When I have a patient who is still struggling to not eat cake and cookies and so forth at parties or celebrations (or just in general), I will give her a tincture of Gymnema sylvestre. This is one of my favorite herbs for diabetes. In capsule form doses of 400 to 2,400 mg a day are recommended.
The ripe fruit of this cactus has been shown in some small studies to lower blood sugar ­levels. You may be able to find the fruit in your grocery store, but if not, look for it as a juice or powder at health food stores. Researchers speculate that the fruit may possibly lower blood sugar because it contains components that work similarly to insulin. The fruit is also high in fiber. Try these foods for the best diabetic diet.
Rosiglitazone (Avandia) and pioglitazone (ACTOS) are in a group of drugs called thiazolidinediones. These drugs help insulin work better in the muscle and fat and also reduce glucose production in the liver. The first drug in this group, troglitazone (Rezulin), was removed from the market because it caused serious liver problems in a small number of people. So far rosiglitazone and pioglitazone have not shown the same problems, but users are still monitored closely for liver problems as a precaution. Both drugs appear to increase the risk for heart failure in some individuals, and there is debate about whether rosiglitazone may contribute to an increased risk for heart attacks. Both drugs are effective at reducing A1C and generally have few side effects. 
The prevalence of prediabetes is also on the rise, as it’s estimated that almost 34 million U.S. adults were prediabetic in 2015. People with prediabetes have blood glucose levels that are above normal but below the defined threshold of diabetes. Without proper intervention, people with prediabetes are very likely to become type 2 diabetics within a decade.
Diabetes is classically divided into three types: upper, middle, and lower Xiao-ke. Each has characteristic symptoms. The upper type is characterized by excessive thirst, the middle by excessive hunger, and the lower by excessive urination. These types are closely associated with the lungs, stomach, and kidneys, respectively, and all three are associated with Yin deficiency. At some point during the course of their illness, most people with diabetes manifest symptoms of all three types.
Trick (most important): Go for longer periods of time without eating (yes, yes, fasting). Consume water only for days or weeks at a time. Your fat will literally dissolve away, and with it your type 2 diabetes and other ailments. The definitive book here is Dr. Joel Fuhrman’s book, Fasting and Eating for Health: A Medical Doctor’s Program for Conquering Disease. I highly recommend it; if you’re skeptical, read the 200+ testimonial comments on Amazon. I and at least 20 of my friends have tried fasts lasting days to weeks. It works, and it is amazing.