Signs of Metabolic Dysfunction (And Where to Get Tested in North County)

Dr. Chad Larson November 2, 2026 Metabolic Health

You eat well, exercise regularly and still struggle to lose weight. By midafternoon, your energy drops, cravings kick in, and you wonder why your efforts aren’t paying off.

Your metabolic health may be part of the reason, even when your usual test results look normal. Metabolic dysfunction affects how your body converts food into energy, regulates blood sugar and stores fat. It’s more common than you might expect.

What Does Metabolic Dysfunction Actually Mean?

When you hear “metabolism,” you probably think about how quickly your body burns calories. But your metabolic health involves much more than weight.

Metabolic dysfunction occurs when your body struggles to regulate glucose, manage lipids or convert food into usable energy. It can affect several connected processes and increase your risk of chronic health conditions.

A study by researchers at Tufts University, published in the Journal of the American College of Cardiology, found that only 6.8% of U.S. adults had optimal cardiometabolic health based on national survey data from 2017-2018.

How Is Metabolic Syndrome Identified?

Metabolic syndrome is a group of risk factors that increases your risk of type 2 diabetes, heart disease and stroke. Doctors typically assess five markers:

1. Waist circumference: Excess fat around your abdomen is linked to insulin resistance, a condition where your cells don’t respond efficiently to insulin, and other metabolic problems. A waist measurement above 40 inches for men or 35 inches for women is a common risk threshold, although it may vary by ethnicity.
2. Triglycerides: These fats circulate in your blood and can rise when your body struggles to manage excess energy. A fasting triglyceride level of 150 mg/dL or higher meets one of the diagnostic criteria for metabolic syndrome.
3. HDL (high-density lipoprotein) cholesterol: Often called “good” cholesterol, HDL helps remove excess cholesterol from your bloodstream. Levels below 40 mg/dL for men or 50 mg/dL for women are associated with increased cardiovascular risk.
4. Blood pressure: High blood pressure places extra strain on your heart and blood vessels. Readings of 130/85 mmHg or higher are one of the markers doctors assess.
5. Fasting blood sugar: This test measures your glucose levels after fasting and detects problems with blood sugar regulation. Levels of 100 mg/dL or higher may indicate impaired glucose control.

Meeting three or more criteria generally indicates metabolic syndrome. Your naturopathic doctor also considers medications, medical history and other risk factors when evaluating these findings.

You may develop metabolic concerns before receiving a diagnosis of prediabetes, a condition where your blood sugar is elevated but not yet high enough for a diabetes diagnosis, or diabetes itself. That’s why metabolic screening helps you understand your health beyond what you see on the scale.

What Are the Signs of Metabolic Dysfunction?

You may notice small changes in how you feel before realizing they deserve attention. Signs of poor metabolic health can appear in your daily routine, physical health or previous lab results. Some are easy to overlook, especially when you associate them with aging, stress or a busy schedule.

Some symptoms and health findings that may warrant a closer look include:

• Difficulty losing weight: You struggle to lose weight despite consistent eating and exercise habits.
• Increased belly fat: You notice more fat around your waist, which may indicate higher levels of visceral fat, the fat stored around your internal organs that carries higher metabolic and cardiovascular risk than subcutaneous fat.
• Energy crashes and cravings: You feel sleepy after meals, experience afternoon energy dips or frequently crave sweets.
• Persistent fatigue: You wake up tired or need more time to recover after exercise.
• Brain fog: You struggle to concentrate or stay mentally alert throughout the day.
• Hormonal changes: You experience irregular menstrual cycles, reduced libido or changes associated with perimenopause or polyendocrine metabolic ovarian syndrome (PMOS).
• Dark skin patches: You develop dark, velvety patches around your neck or armpits, a condition called acanthosis nigricans that may indicate insulin resistance.
• Elevated blood pressure: Your readings remain high during repeated measurements.
• Family history: You have a parent or sibling with type 2 diabetes or cardiovascular disease.
• Borderline lab results: Your previous tests show elevated blood sugar, cholesterol or triglycerides.

Why Do These Signs Require Further Testing?

Experiencing these symptoms doesn’t automatically mean you have metabolic dysfunction. Thyroid disorders, anemia, sleep problems, nutrient deficiencies and medication side effects can cause similar changes. Some people with insulin resistance or prediabetes have no noticeable symptoms at all.

When should you consider testing?

Persistent symptoms, a family history of diabetes or previous abnormal lab results are good reasons to discuss screening with your doctor. Routine diabetes screening is also recommended for adults starting at age 35, or earlier for some people with additional risk factors.

Your symptoms alone cannot confirm a diagnosis. Comprehensive metabolic testing can reveal abnormal health markers and guide further evaluation.

LEARN MORE: Sleep Apnea and Metabolic Syndrome: The Vicious Cycle and How to Break It

What Tests Can Reveal Metabolic Dysfunction?

Doctors use blood tests and physical measurements to assess your metabolic health. Standard screening checks common risk factors, while additional tests may help investigate specific concerns based on your clinical profile.

Standard Metabolic Screening Tests

The evaluation usually starts with basic tests to check your blood sugar, cholesterol and other key health markers. These results flag common metabolic problems and show if you need further testing.

• Fasting blood glucose: Checks your blood sugar after fasting to identify signs of prediabetes or diabetes. Levels of 100 to 125 mg/dL indicate prediabetes, while 126 mg/dL or higher may indicate diabetes and usually requires confirmation.
• Hemoglobin A1c: Shows your average blood sugar over the past 2 to 3 months, revealing long-term changes in glucose control.
• Lipid panel: Measures cholesterol and triglycerides to assess your risk of heart disease.
• Blood pressure and waist circumference: Check for high blood pressure and excess abdominal fat, which are two risk factors for metabolic syndrome.
• Comprehensive metabolic panel (CMP): Checks blood glucose, kidney function, liver-related markers and electrolyte levels to assess your overall health.

Results in the diabetes range generally require confirmation and follow-up with a qualified medical provider.

Advanced Testing for a Closer Look

If your initial screening results or clinical presentation raise additional questions, your doctor may recommend specific tests to investigate them.

• Fasting insulin and HOMA-IR: Fasting insulin measures insulin levels in your blood. HOMA-IR (Homeostatic Model Assessment of Insulin Resistance) uses fasting insulin and glucose to estimate insulin resistance, although neither test confirms a diagnosis on its own.
• Advanced lipid markers: Check ApoB (apolipoprotein B), a protein on cholesterol particles that indicates cardiovascular risk more precisely than total cholesterol alone; lipoprotein(a), a genetic cholesterol-related risk factor that standard panels don’t measure; and sometimes LDL particle levels, which measure the number of cholesterol-carrying particles rather than just the amount of cholesterol they contain.
• Thyroid function tests: Check your thyroid hormone levels to detect problems that may explain fatigue, unexplained weight changes or other symptoms.
• High-sensitivity C-reactive protein (hs-CRP): Measures a marker of low-grade systemic inflammation to gauge cardiovascular risk.
• Micronutrient testing: Checks specific nutrients, such as vitamin D, iron, magnesium and B vitamins, when your symptoms or medical history suggest a deficiency.

Why Normal Results Don’t Always Tell the Whole Story

You’ve had your blood drawn, checked your patient portal and seen results marked “normal.” But what if you still have unanswered questions about your health?

A result within a laboratory’s reference range doesn’t always tell you everything about your health. Doctors also consider established risk thresholds, previous results and your medical history.

For example, consider these findings together:

• Fasting insulin: Higher-than-expected levels may suggest your body needs more insulin to keep blood sugar stable.
• Fasting glucose: A reading of 98 mg/dL falls within the normal range but doesn’t rule out insulin resistance.
• Triglycerides: Levels approaching 150 mg/dL may warrant attention, particularly when other cardiovascular risk factors are present.
• Waist circumference: An increase of two inches over three years may signal growing abdominal fat, a risk factor for metabolic problems.

Together, these findings may raise questions about insulin resistance or other metabolic risk factors. Your doctor can review them alongside your medical history before deciding if further evaluation is needed.

ALSO READ: The HOMA-IR Score: Understanding Your Insulin Resistance Level

Where Can You Get Tested in North County San Diego?

You have several options for metabolic testing in North County San Diego. Your choice depends on your symptoms, medical history and the level of evaluation you need.

Primary Care for Routine Metabolic Screening

Your primary care provider can order standard blood tests and assess common metabolic risk factors during a routine visit. They can also help you manage existing conditions such as diabetes or heart disease.

If your results require further evaluation, your doctor may recommend additional testing or specialist support.

The Adapt Lab in Solana Beach for Comprehensive Metabolic Testing

If you want a more detailed assessment, The Adapt Lab in Solana Beach offers metabolic testing that may include advanced laboratory markers and body composition assessments.

Dr. Chad Larson reviews your symptoms, previous results and health goals to determine which tests may help investigate your concerns. The evaluation goes beyond collecting blood samples by examining how your findings relate to your overall health.

The Solana Beach office also serves patients from nearby communities, including Del Mar, Encinitas and Rancho Santa Fe.

What Happens During a Metabolic Workup?

A metabolic workup helps your doctor understand your current health, identify potential concerns and determine which treatments may be appropriate.

Here’s what you can expect during the process:

Initial Consultation and Health History

Your first visit focuses on your symptoms, weight history, sleep, nutrition, exercise habits, stress levels, medications and family history.

Bring any previous lab results, including glucose, A1c, cholesterol, thyroid or hormone tests. These records help your doctor identify changes in your metabolic health over time. A current list of medications and supplements is also useful.

Laboratory Testing and Baseline Measurements

After reviewing your health history, your clinical team selects the tests needed to investigate your concerns. Some tests require fasting, and results may take several days or longer, depending on the laboratory and panels ordered.

Before testing, confirm:

• Fasting requirements: Ask how long you need to fast before your blood draw.
• Medications and supplements: Review what you take and follow your doctor’s instructions. Never stop prescribed medications without medical guidance.
• Testing costs: Request details about pricing and self-pay options.

Results Review and Treatment Planning

Once your results arrive, your provider reviews your findings, explains any concerns and identifies areas that need attention.

Depending on your results, your treatment plan may include:

• Nutrition adjustments: Changes to your eating habits based on your health needs and glucose regulation.
• Strength training: Exercise recommendations that support muscle health and weight management.
• Sleep and stress management: Adjustments to daily habits that may affect your overall health.
• Medication review: Evaluation of current prescriptions or consideration of a medical weight loss program when appropriate.
• Follow-up testing: Repeat measurements to assess your progress and determine if your plan needs adjustments.

Your doctor will also establish measurable goals based on your findings. Follow-up testing helps track changes over time rather than relying only on how you feel.

READ MORE: What to Expect at Your First Metabolic Health Consultation

Start Your Metabolic Health Evaluation With Dr. Chad Larson

Still struggling with symptoms even though your previous lab results appeared normal? Dr. Chad Larson is a naturopathic doctor and chiropractor at The Adapt Lab in Solana Beach. He uses targeted laboratory testing and clinical assessments to help patients investigate concerns about their metabolic health. Dr. Larson uses the Metabolic Magic Method to connect your testing results with targeted treatment strategies.

Get clearer answers about your health and take the next step toward measurable improvement. Take the metabolic quiz or book a consultation to discuss your metabolic testing options with The Adapt Lab.