What is metabolic syndrome?
Metabolic syndrome is diagnosed when an individual has three or more of the following five risk factors, per the National Cholesterol Education Program (ATP III) criteria:
- Abdominal obesity: waist circumference above 40 inches (men) or 35 inches (women)
- Elevated triglycerides: 150 mg/dL or higher, or on triglyceride-lowering medication
- Low HDL cholesterol: below 40 mg/dL (men) or 50 mg/dL (women), or on HDL-raising medication
- High blood pressure: 130/85 mmHg or higher, or on antihypertensive medication
- Elevated fasting glucose: 100 mg/dL or higher, or on glucose-lowering medication
Metabolic syndrome affects approximately 35% of US adults and is rising in prevalence. It is associated with a 2-fold increased risk of cardiovascular disease and a 5-fold increased risk of type 2 diabetes. Each additional component compounds the risk further.
Signs and features to look for
What causes metabolic syndrome?
Metabolic syndrome is fundamentally driven by insulin resistance — the body’s reduced ability to respond to insulin — combined with excess visceral adipose tissue (fat stored around the abdominal organs). Key contributing factors include:
- Excess body weight, particularly abdominal obesity
- Physical inactivity, which worsens insulin sensitivity
- Poor dietary patterns, particularly high refined carbohydrate and saturated fat intake
- Genetic predisposition, including family history of diabetes and cardiovascular disease
- Age and hormonal changes, including declining testosterone in men and menopause in women
- Sleep disorders, particularly obstructive sleep apnea, which worsens insulin resistance
Metabolic syndrome is not inevitable — even modest improvements in weight, diet, and activity level can reverse several of its components and dramatically reduce cardiovascular risk.
Can metabolic syndrome be managed online?
Telehealth is well-suited for evaluation and management of the metabolic components — ordering labs, prescribing medications for blood sugar, lipids, and blood pressure, and supervising a weight management program. Lab work is required to confirm the diagnosis and monitor treatment. Blood pressure requires measurement, which patients can perform at home with a reliable cuff or at a pharmacy.
Acute cardiovascular events and symptoms such as chest pain, shortness of breath, or sudden neurological changes require emergency in-person care and are not managed by telehealth.
How metabolic syndrome is treated
Treatment targets each component systematically. Lifestyle modification is the primary intervention:
- Weight loss: even a 5–10% reduction in body weight improves or resolves multiple components simultaneously; GLP-1 receptor agonists are particularly effective
- Physical activity: 150 minutes/week of moderate aerobic exercise improves insulin sensitivity, lowers triglycerides, raises HDL, and reduces blood pressure
- Diet: Mediterranean or low-glycemic dietary patterns reduce triglycerides, improve glucose control, and support weight loss
- Blood pressure medications: ACE inhibitors or ARBs are preferred when treatment is needed; they also have metabolic benefits
- Statin therapy: for elevated LDL cholesterol or high cardiovascular risk
- Triglyceride-lowering agents: fibrates or omega-3 fatty acids for significantly elevated triglycerides
- Metformin or GLP-1 agonists: for glucose abnormalities and to address the insulin resistance driving the syndrome
Frequently asked questions
Do I need all five criteria to have metabolic syndrome?
No — three of the five criteria are sufficient for diagnosis. Two components increase risk compared to none, even if they do not meet the full syndrome definition. Any component is worth addressing.
Can metabolic syndrome be reversed?
Yes, often substantially. Sustained weight loss, increased physical activity, and dietary changes can normalize blood sugar, triglycerides, HDL, and blood pressure in many people. The earlier treatment begins, the better the outcomes.
Is metabolic syndrome the same as prediabetes?
Not exactly, though they often co-occur. Prediabetes refers specifically to blood sugar between normal and diabetic range. Metabolic syndrome is a broader cluster of five criteria. Many people with metabolic syndrome have prediabetes as one component.
What labs do I need?
A fasting lipid panel (triglycerides, HDL, LDL), fasting glucose, HbA1c, and basic metabolic panel, along with waist measurement and blood pressure. The clinician will order these as part of the evaluation.