What is metabolic syndrome?

Metabolic syndrome is a cluster of conditions that increase the risk of heart disease, stroke, and type 2 diabetes. The NCEP ATP III criteria define it as having three or more of five conditions: abdominal obesity, elevated triglycerides, low HDL cholesterol, elevated blood pressure, and elevated fasting glucose.

What are the NCEP ATP III diagnostic criteria?

The five NCEP ATP III criteria are: 1) Waist circumference >40 in (men) or >35 in (women); 2) Triglycerides >=150 mg/dL; 3) HDL =130/85 mmHg; 5) Fasting glucose >=100 mg/dL. Having 3+ indicates metabolic syndrome.

How common is metabolic syndrome?

Approximately 1 in 3 adults in the United States has metabolic syndrome, according to CDC data. Prevalence increases with age, and is higher among Hispanic and African American populations.

Why does this calculator use US units by default?

VivMetric targets a North American audience where imperial units (in, mmHg, mg/dL) are the daily standard. The calculator supports one-click switching to metric units and remembers your last selection.

Metabolic Syndrome Screening — US Units

Instant metabolic syndrome risk assessment using NCEP ATP III criteria. Enter your waist circumference, blood pressure, glucose, triglycerides, and HDL to see your risk factor count update in real time.

Gender

Waist Circumference (in)

Systolic BP (mmHg)

Diastolic BP (mmHg)

Fasting Glucose (mg/dL)

Triglycerides (mg/dL)

HDL Cholesterol (mg/dL)

Risk Factors Present

Metabolic Syndrome

Cardiovascular Risk

How This Calculator Works

Enter your measurements and lab values into the fields above. The calculator evaluates each of the five NCEP ATP III criteria in real time — there is no "Calculate" button. Your risk factor count, metabolic syndrome status, and cardiovascular risk level update instantly.

NCEP ATP III Criteria

The calculator checks five conditions. Having three or more indicates metabolic syndrome:

Risk Factor	Male Threshold	Female Threshold
Abdominal Obesity	Waist > 40 in	Waist > 35 in
Elevated Triglycerides	≥ 150 mg/dL
Low HDL Cholesterol	< 40 mg/dL	< 50 mg/dL
Elevated Blood Pressure	≥ 130/85 mmHg
Elevated Fasting Glucose	≥ 100 mg/dL

Understanding Your Results

Risk Factors	Classification	Metabolic Syndrome	CV Risk
0	Low Risk	No	Low
1	Borderline	No	Moderate
2	At Risk	No	Moderate-High
3	Metabolic Syndrome	Yes	High
4–5	Severe Metabolic Syndrome	Yes	Very High

Metabolic syndrome significantly increases the risk of type 2 diabetes (5–10×), cardiovascular disease (2–4×), hypertension, dyslipidemia, and non-alcoholic fatty liver disease. Early detection and management are important for preventing complications.

Prevention and Management

The following lifestyle modifications are evidence-based for managing metabolic syndrome:

Strategy	Recommendation	Evidence Level
Weight Management	Lose 5–10% of body weight	Strong
Physical Activity	150 minutes/week of moderate exercise	Strong
Dietary Changes	Reduce saturated fat, trans fat, added sugars	Moderate
Sodium Reduction	Below 2,300 mg/day sodium	Moderate
Alcohol Moderation	Limit alcohol consumption	Weak

Frequently Asked Questions

What is the difference between metabolic syndrome and diabetes?

Metabolic syndrome is a cluster of risk factors that increases the likelihood of developing type 2 diabetes and cardiovascular disease. It is not diabetes itself, but having metabolic syndrome significantly raises diabetes risk. Elevated fasting glucose (≥100 mg/dL) is one of the five criteria used to screen for metabolic syndrome.

Do I need all five tests to screen for metabolic syndrome?

No. The calculator checks each criterion independently. You only need to enter the values you have. At minimum, waist circumference and blood pressure can be measured at home. Glucose, triglycerides, and HDL require a blood test. If you only have some values, the calculator will still evaluate the criteria you provide.

Who is at risk for metabolic syndrome?

Risk factors include age (risk increases after 40), obesity (especially abdominal obesity), family history of diabetes or heart disease, sedentary lifestyle, poor diet, and certain ethnic groups (Hispanic, African American, Asian American). Approximately 1 in 3 US adults has metabolic syndrome per CDC estimates.

How is metabolic syndrome treated?

Treatment focuses on lifestyle modifications: weight loss (5–10% of body weight), regular physical activity (150 minutes/week of moderate exercise), healthy eating (low in saturated fat, trans fat, and added sugars), and managing individual risk factors through medication if needed. Regular monitoring by a healthcare provider is recommended.

Disclaimer: This calculator provides educational estimations only. It is not medical advice, diagnosis, or treatment. Always consult a licensed healthcare provider for medical concerns.

Metabolic Syndrome Screening — US Units

How This Calculator Works

NCEP ATP III Criteria

Understanding Your Results

Prevention and Management

Frequently Asked Questions

Waist Height Ratio

CVD Risk Calculator

BMI Calculator

Metabolic Syndrome Guide