Metabolic syndrome is a combination of medical disorders that increase one's risk for cardiovascular disease and diabetes. It affects a large number of people in a clustered fashion. In some studies, the prevalence in the USA is calculated as being up to 25% of the population.
The first line treatment is change of lifestyle (i.e., caloric restriction and physical activity). However, drug treatment is frequently required. Generally, the individual diseases that comprise the metabolic syndrome are treated separately (e.g. diuretics and ACE inhibitors for hypertension). Cholesterol drugs may be used to lower LDL cholesterol and triglyceride levels, if they are elevated. Use of drugs that decrease insulin resistance e.g., metformin and thiazolidinediones is controversial and not FDA approved.
Recent studies indicate that cardiovascular exercise is therapeutic in less than 31% of cases. The most probable benefit is to triglyceride levels, with 43% of sufferers showing improvement; conversely 91% of test subjects did not exhibit a decrease in fasting plasma glucose or insulin resistance.
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