Our Comprehensive Diagnostic Testing Services

At Campbell Functional Medicine, we offer advanced lab testing to uncover the root causes of your health concerns and prevent future disease. These tests provide critical insights into your body’s unique needs, helping us create a personalized treatment plan so you can feel your best. We serve the greater Houston area and virtual patients throughout the country.

Micro-Nutrient Testing

Find out if hidden vitamin and mineral deficiencies are affecting your energy, immunity, and overall health. This test helps identify exactly what your body needs to function at its best.

Saliva Testing

Measure your hormone and cortisol levels to assess adrenal function and stress response. This non-invasive test provides key insights into fatigue, anxiety, and hormone imbalances.

Food Allergy & Sensitivity Testing

Identify food intolerances and allergies that may be triggering inflammation, digestive issues, headaches, or skin conditions. Discover which foods work best for your body.

Organic Acid Testing (OAT)

Get a detailed look at your metabolic health, gut bacteria balance, and nutrient absorption. This test helps pinpoint causes of fatigue, brain fog, and digestive problems.

Stool Testing

Assess gut health, inflammation, and potential infections by analyzing your microbiome. This test can help address chronic bloating, IBS, and digestive discomfort.

DNA Testing

Unlock insights into your genetic makeup to personalize your nutrition, lifestyle, and wellness plan. Understand how your body processes nutrients and responds to stress.

Advanced Cardiometabolic Testing

Identify early risk factors for heart disease, diabetes, and metabolic dysfunction. Get a proactive plan to optimize heart health and longevity.

Heavy Metal Toxicity Testing

Detect toxic metal buildup from environmental exposure that may be affecting your brain, immune system, or energy levels. Find out how to detox safely.

Mold Toxicity Testing

Uncover exposure to harmful mold toxins that may be causing unexplained fatigue, brain fog, respiratory issues, or chronic inflammation. Learn how to recover.

Learn how functional medicine supports your health with the Institute for Functional Medicine.

Did You Know?

The High Cost of Poor Healthcare

The U.S. spends more on healthcare per person than any other nation, yet life expectancy remains low, and preventable diseases are rising. (source).

Functional Medicine Goes Beyond Symptom Management

If you’ve ever felt like traditional medicine only treats the symptoms without addressing the real problem, you’re not alone. Functional medicine takes a deeper look at your health—considering your lifestyle, genetics, and environment—to find and treat the root cause. This means more personalized care, long-term solutions, and a focus on prevention so you can feel your best.

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Investing in Prevention

Despite massive healthcare spending, the U.S. has the highest rates of preventable hospitalizations and avoidable deaths—prevention is key (source).