IR is the underlying cause of type 2 diabetes. IR is an abnormal physiologic state that may exist for decades before diabetes becomes clinically evident because of increased glucose levels. Improving insulin sensitivity, ideally before the development of glucose intolerance, is a newer approach to the prevention and treatment of type 2 diabetes.
One large trial in patients with diabetes comparing a pharmacological approach (metformin) with aggressive changes in lifestyle found that increasing physical activity may improve insulin sensitivity more than the drug would (Knowler et al, 2002). Because IR may be the most common predisposing factor for the development of NAFLD, these findings in the diabetic and prediabetic populations may be equally relevant to people with fatty liver.
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All you need is a proper diet of fresh fruits and vegetables and get plenty of exercise and you'll be fine. Ever heard those words from your doctor? If that's all heshe recommends then you're missing out an important ingredient for health that he's not telling you. Fact is that you can adhere to the strictest diet, watch everything you eat and get the exercise of amarathon runner and still come down with diabetic complications. Diet, exercise and standard drug treatments simply aren't enough to help keep your diabetes under control.