According to the American Heart Association, metabolic syndrome is present if you have three or more of the following:
Blood pressure at or above 130/85 mmHg
Fasting blood sugar (glucose) at or above 100mg/dL
Large waist circumference (length around the waist): men-40 inches or more; women-35 inches or more
Low HDL (good) cholesterol: men-under 40mg/dL; women-under 50mg/dL
Triglycerides over 150
Source: HealthFocus (Princeton HealthCare System). July/August 2012, p. 7.