In other words, we can say that diabetes is a continual metabolic disorder that prevents the body from utilizing glucose totally or partially. The disorder is characterized by raised glucose absorption in the blood. When body does not have enough insulin, it cannot use or store glucose, which raises the level of glucose in the body. Diabetes is not curable, but controllable. There are several methods and remedies which can be used to tame this dreadful disease. Such is its dreadfulness that it is one of the major causes of disability and death in USA. In most of the cases, diabetes further leads to other critical diseases, like heart failure, obesity, cardiac arrest, etc.
Storage of liver fat can only occur when daily calorie intake exceeds expenditure. Sucrose overfeeding for 3 weeks has been shown to cause a 30% increase in liver fat content (37). The associated metabolic stress on hepatocytes was reflected by a simultaneous 30% rise in serum alanine aminotransferase (ALT) levels, and both liver fat and serum ALT returned to normal levels during a subsequent hypocaloric diet. Superimposed upon a positive calorie balance, the extent of portal vein hyperinsulinemia determines how rapidly conversion of excess sugars to fatty acid occurs in the liver. In groups of both obese and nonobese subjects, it was found that those with higher plasma insulin levels have markedly increased rates of hepatic de novo lipogenesis (2,38,39). Conversely, in type 1 diabetes the relatively low insulin concentration in the portal vein (as a consequence of insulin injection into subcutaneous tissue) is associated with subnormal liver fat content (40). Initiation of subcutaneous insulin therapy in type 2 diabetes brings about a decrease in portal insulin delivery by suppression of pancreatic insulin secretion and, hence, a decrease in liver fat (41). Hypocaloric diet (42), physical activity (43), or thiazolidinedione use (23,44) each reduces insulin secretion and decreases liver fat content. Newly synthesized triacylglycerol in the liver will be either oxidized, exported, or stored as hepatic triacylglycerol. Because transport of fatty acid into mitochondria for oxidation is inhibited by the malonyl-CoA produced during de novo lipogenesis, newly synthesized triacylglycerol is preferentially directed toward storage or export. Hence, hepatic fat content and plasma VLDL triacylglycerol levels are increased.
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."
There are major barriers for widespread use of islet also-transplantation that can help people with type 1 diabetes. The shortage of islets from donors is a huge obstacle. The other obstacle is that this is still considered an experimental procedure and until the procedure is considered successful enough to be labeled therapeutic by the FDA instead of experimental, the costs of these transplants come from limited research funds.
Can prediabetes be “cured”? In the early stages of prediabetes (and type 2 diabetes), diligent attention to food choices and activity, and most importantly weight loss, can improve blood sugar numbers, effectively “reversing” the disease and reducing the odds of developing type 2 diabetes. However, some people may have underlying factors (such as family history and genetics) that put them at a greater risk of type 2 diabetes, meaning they will always require careful attention to blood sugar levels and lifestyle choices. Returning to old habits will likely put someone back on the road to prediabetes, and eventually, type 2 diabetes.
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.