Joseph, you should talk with your doctor or diabetes educator about this. In general, you can take metformin with most herbs, but your case might be different, and you might not need to. You might have to experiment. The same with insulin, although you have to be more careful there — in all cases you should work with your doctor or diabetes educator.
Some of the above drugs are available in compound form, and there are many patients taking three to four of them to control their blood sugar. But again, "the most common duo is metformin and a sulfonylurea,” says Arti Bhan, MD, division head of endocrinology at Henry Ford Health System in Detroit. “Metformin makes the body utilize insulin more effectively, and the sulfonylurea works on the pancreas to make more insulin in response to food consumption. Another common combination is metformin and insulin.”

Alternative: “The reason I use food-based supplements is because they most closely help correct what I see as the problem: The food we’re eating is lacking in nutrients,” DeLaney says. “If their vitamin D is low, it tells me all their fat-soluble vitamins are low.” She uses cod liver oil along with high-vitamin butter oil to restore these deficiencies.
Clearly separate from the characteristic lack of acute insulin secretion in response to increase in glucose supply is the matter of total mass of β-cells. The former determines the immediate metabolic response to eating, whereas the latter places a long-term limitation on total possible insulin response. Histological studies of the pancreas in type 2 diabetes consistently show an ∼50% reduction in number of β-cells compared with normal subjects (66). β-Cell loss appears to increase as duration of diabetes increases (67). The process is likely to be regulated by apoptosis, a mechanism known to be increased by chronic exposure to increased fatty acid metabolites (68). Ceramides, which are synthesized directly from fatty acids, are likely mediators of the lipid effects on apoptosis (10,69). In light of new knowledge about β-cell apoptosis and rates of turnover during adult life, it is conceivable that removal of adverse factors could result in restoration of normal β-cell number, even late in the disease (66,70). Plasticity of lineage and transdifferentiation of human adult β-cells could also be relevant, and the evidence for this has recently been reviewed (71). β-Cell number following reversal of type 2 diabetes remains to be examined, but overall, it is clear that at least a critical mass of β-cells is not permanently damaged but merely metabolically inhibited.
By day eight, I was being called the "disappearing man", and began to feel a bit detached from my colleagues. While my energy levels were fine and glucose levels were 4.3mmol/L, constipation had set in, as a result of not drinking enough water. Thankfully, laxatives cured this. Taylor emailed to say my progress was so good, I  could come off the liquid diet and go back to normal foods.
Jambul fruit is an effective anti-diabetes agent considering its effect on the pancreas. The fruit, its seed, and juice, all are helpful in treatment of diabetes. Jambul fruit seeds contain a glucoside compound called "jamboline", which, supposedly, has the power to check the pathological conversion of starch into sugar in cases of increased production of glucose. Regular intake of jambul fruit can trigger pancreas to release insulin. Also, it can bring down blood sugar levels considerably. Therefore, jambul is an excellent anti-diabetes agent. It is one of the best home remedies for diabetes.
Adams is well known for his incredibly popular consumer activism video blowing the lid on fake blueberries used throughout the food supply. He has also exposed "strange fibers" found in Chicken McNuggets, fake academic credentials of so-called health "gurus," dangerous "detox" products imported as battery acid and sold for oral consumption, fake acai berry scams, the California raw milk raids, the vaccine research fraud revealed by industry whistleblowers and many other topics.
Cinnamon has the ability to lower blood sugar levels and improve your sensitivity to insulin. A study conducted at Western University of Health Sciences in Pomona, Calif. found that the consumption of cinnamon is associated with a statistically significant decrease in plasma glucose levels, LDL cholesterol and triglyceride levels. Cinnamon consumption also helped increase HDL cholesterol levels. (15)
Type 2 diabetes, although influenced by a person’s genes, is largely thought to be brought about by a poor diet and being overweight for prolonged periods of time, particularly at an old age. The pancreas is either unable to produce enough insulin, or the body’s cells simply don’t react to insulin, which leads to dangerously high blood sugar levels.
Taking 200 micrograms of chromium picolinate three times daily with meals can help improve insulin sensitivity. A review published in Diabetes Technology and Therapeutics evaluated 13 studies that reported significant improvement in glycemic control and substantial reductions in hyperglycemia and hyperinsulinemia after patients used chromium picolinate supplementation. Other positive outcomes from supplementing with chromium picolinate included reduced cholesterol and triglyceride levels and reduced requirements for hypoglycemic medication. (14)
Initial clinical trial results, published in a 2012 PLOS One paper, reported that two doses of BCG spaced four weeks apart led to reductions in autoreactive T cells, an increase in Tregs and what turned out to be a transient increase in insulin production. But by the end of that short, 20-week trial, there was no reduction in HbA1c, the established measure of blood sugar levels over time. An extension and expansion of that trial with long term follow-up, the current results are based on data from 282 human study participants – 52 with type 1 diabetes who participated in the BCG clinical trials and 230 who contributed blood samples for mechanistic studies.
They also have to balance the food they eat with the amount of insulin they take and their activity level. That's because eating some foods will cause blood sugar levels to go up more than others, whereas insulin and exercise will make blood sugar go down. How much the blood sugar level goes up after eating depends on the type of nutrients the food contains.
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.