Some studies suggest that low magnesium levels may worsen blood glucose control in type 2 diabetes. There is also some evidence that magnesium supplementation may help with insulin resistance. For example, a study examined the effect of magnesium or placebo in 63 people with type 2 diabetes and low magnesium levels who were taking the medication glibenclamide. After 16 weeks, people who took magnesium had improved insulin sensitivity and lower fasting glucose levels.
A major feature of the disease is a condition known as insulin resistance.  Insulin is a hormone that moves glucose (sugar), from the bloodstream into the body’s cells where it is used for energy.  For a variety of reasons that are not fully understood, the body’s tissues don’t respond adequately to insulin and glucose then becomes elevated in the bloodstream.
Patients diagnosed with type 2 diabetes may discover that if they are overweight at diagnosis and then lose weight and begin regular physical activity, their blood glucose returns to normal. Does this mean diabetes has disappeared? No. The development of type 2 diabetes is a gradual process, too, in which the body becomes unable to produce enough insulin for its needs and/or the body's cells become resistant to insulin's effects. Gradually the patient goes from having "impaired glucose tolerance" — a decreased but still adequate ability to convert food into energy — to having "diabetes."
in the mean time Professor Roy Taylor has published a second paper on trying to cure obese type 2 diabetics by putting them on that 600 kCal diet for 3 months in 20916, the success rate was 50% Very Low-Calorie Diet and 6 Months of Weight Stability in Type 2 Diabetes: Pathophysiological Changes in Responders and Nonresponders. Mean weight loss was 15 kg ≈ 15%, and maintained after those 3 month.
The Chinese language includes two terms for diabetes. The traditional name, Xiao-ke, correlates closely with diabetes in most instances. Xiao-ke syndrome means “wasting and thirsting.” The more modern term, Tang-niao-bing, means “sugar urine illness.” Reference to diabetes by the traditional term appears in the earliest texts, including the first medical text in Chinese history, Huang Di Nei Jing, or The Yellow Emperor’s Inner Classic.
Trick (important): Cut down on sweets, and if you can, cut them out entirely for a couple months. I still eat ice cream about once a week, and know people who are losing weight on this diet while eating ice cream almost every day. But this probably won’t be the case for everyone. Better to severely restrict sweets for the first few months, and then gradually reintroduce.
You should have no more than three of these “feeding times” per day. The reason limiting the number and duration of your meal times is so important has to do with staying out of the vicious cycle of increasing insulin resistance. To get smart on insulin resistance — the cause of both type 2 diabetes and obesity — read Dr. Jason Fung’s book, The Obesity Code: Unlocking the Secrets of Weight Loss, or watch his free lecture on YouTube.