Blog: Gut Essentials

Why Understanding Your Body From the Inside Out Matters

As a functional and integrative dietitian/nutritionist, my deepest mission is to help you reclaim control of your health journey and restore your confidence in your body’s natural healing abilities—with the right support.

How do I do this? By identifying root causes behind your symptoms and creating personalized interventions that address these underlying imbalances, allowing you to experience vibrant health again.

One of the most powerful tools in this process is comprehensive lab testing! 

These tests shine a light on what’s actually happening inside your body, providing both HOPE and INSIGHT into your health challenges. With this information, we can implement targeted, effective approaches that give you a renewed sense of control over your wellbeing.

“What Lab Tests Should I Get Done Each Year?”

This is one of the most common questions I hear from clients who feel frustrated by the limited standard blood work ordered by their physicians.

Today, I’m sharing 12 essential lab tests you should consider annually to gain a deeper understanding of your body’s internal workings, empowering you to take meaningful action toward optimal health.

Lab Testing: Your Window Into Internal Health

Lab tests involve collecting samples from your body—whether blood, urine, saliva, tissue, or hair—which are then analyzed to measure specific components and biomarkers.

These measurements reveal crucial information about what’s happening beneath the surface, showing how different organs and systems in your body are communicating and functioning.

Think of each lab test like a section of a symphony orchestra. By measuring different components and gaining feedback on what’s happening internally, we can identify which sections of your body’s “symphony” need attention so harmony can be restored!

This valuable information allows your healthcare practitioner (the conductor!) to detect imbalances, deficiencies, and potential disease states early—often before symptoms become severe.

Unfortunately, our conventional healthcare model typically runs limited lab tests, and usually only when there’s already a clear indication that something is wrong. By then, your body has often moved from whispering to shouting about the problem.

Let’s explore the essential lab tests that, when combined, provide a comprehensive overview of your gut and overall health status—revealing which areas need support to restore your body’s natural harmony and vitality.

12 Lab Tests You Should Consider Annually

1. Complete Metabolic Profile (CMP)

A complete metabolic profile is a blood test that gives us a snapshot of your liver and kidney function, your electrolytes, overall chemical balance, and metabolism. More specifically, a complete metabolic profile evaluates your:

• Albumin: Albumin is a protein produced by your liver that helps transport substances through your bloodstream.
• Bilirubin: Bilirubin is a waste product created when your red blood cells are broken down. Your liver is responsible for the breakdown and removal of this compound.
• BUN (blood urea nitrogen): Urea nitrogen is a waste product that’s filtered out and removed by your kidneys.
• Calcium: An abundant and essential mineral that is important for proper nerve, muscle, and heart function.
• Creatinine: Creatinine is a natural byproduct of muscle activity that’s processed and removed via your kidneys.
• Electrolytes: Four of your most crucial electrolyte levels are assessed – sodium, potassium, bicarbonate, and chloride.
• Glucose: Also known as your blood sugar.
• Liver enzymes: Enzymes are specialized proteins that facilitate and speed up chemical reactions within your body. Your liver relies on various enzymes to carry out its duties such as – alkaline phosphatase (ALP), alanine transaminase (ALT), and aspartate aminotransferase (AST).
• Total protein: The total amount of proteins floating in your bloodstream.

Because a CMP includes multiple measurements, it offers a broad look at multiple functions within your body. This is an essential baseline test.

2. Complete Blood Count with Differential (CBC)

A complete blood count or CBC is a blood test that counts and analyzes your various blood cells. A CBC with a differential means that it also breaks down and examines not just your overall white blood cell count, but how many of each specific type you have.

A CBC can give information about:

• How many new blood cells you’re producing and how well they’re functioning
• The oxygen-carrying capacity of your red blood cells by assessing hemoglobin levels
• Your hematocrit levels – or the concentration of red blood cells within your bloodstream
• How well your blood is able to clot based on platelet count
• How well your immune system is functioning by evaluating how many of each type of white blood cell you’re producing

Because your blood serves as one of the primary transportation channels throughout your body, an imbalance in your CBC help identify deeper imbalances and determine if more diagnostic testing is needed.

3. Iron Panel

Iron plays a critical role in red blood cell metabolism and oxygen transport. An iron panel provides a complete picture of your iron status by measuring:

• Serum iron: The amount of iron circulating in your blood
• Ferritin: Your body’s iron storage reserves
• Transferrin: The protein that transports iron throughout your body
• Total iron-binding capacity (TIBC): How effectively iron attaches to proteins in your blood

This comprehensive assessment is far more valuable than a simple serum iron test, providing an accurate representation of your overall iron status.

4. Advanced Lipid Panel with APoB and Lp(a)

While standard cholesterol tests provide basic information, an advanced lipid panel offers a more detailed view of your cardiovascular health by measuring:

• Standard lipids: Total cholesterol, LDL, HDL, and triglycerides
• Apolipoprotein B (apoB): A more accurate predictor of cardiovascular risk than standard LDL
• Lipoprotein(a) or Lp(a): An independent genetic risk factor for heart disease and stroke

These detailed insights allow for more targeted interventions to protect your heart and brain health.

5. Metabolic Health Markers

These crucial markers provide critical insights into your metabolic health and risk for chronic conditions:

• Fasting Glucose & Insulin: Detect early signs of insulin resistance before diabetes develops
• Hemoglobin A1C: Reveals your 3-month blood sugar average
• Uric Acid: Identifies risks for gout, kidney stones, and metabolic dysfunction

Together, these tests offer a comprehensive view of your blood sugar regulation, metabolic function, and risk factors for conditions like diabetes, heart disease, and obesity.

6. Serum Vitamin D

Vitamin D is an essential nutrient that you absorb from the food you eat and synthesize on your own when your skin comes into contact with sunlight. This fat-soluble vitamin is a powerhouse and helps everything from your immune system, mood, hormones, waistline, gut health, bone growth, and even nutrient absorption.

With more indoor lifestyles, use of sunscreen, poor quality food sources, toxic chemicals, weight gain, and many other vitamin D-depleting modern-day habits, we find that the vast majority of people are deficient in vitamin D.

Testing your vitamin D levels can help not only identify any deficiency but then can help you appropriately supplement to optimize your levels for good health.

7. Complete Thyroid Panel

Your thyroid may be small, but it profoundly impacts virtually every cell in your body. A comprehensive thyroid panel should include:

• TSH: The pituitary hormone that stimulates thyroid function
• Free T4 and Free T3: The active thyroid hormones circulating in your bloodstream
• Thyroid antibodies (TPO and TgAb): Markers for autoimmune thyroid conditions
• Reverse T3: An inactive form of thyroid hormone that can block proper thyroid function

Many standard thyroid tests only measure TSH and maybe T4, missing crucial information about how your thyroid is actually functioning. Request all these markers for a complete picture.

8. Comprehensive Hormone Panel

Hormones are your body’s chemical messengers, coordinating nearly every function. When one hormone becomes imbalanced, it creates a domino effect throughout your entire system.
A thorough hormone panel should assess:

• Sex hormones: Estrogen, testosterone, progesterone, and SHBG
• Adrenal function: Ideally through a 4-point cortisol test showing your daily cortisol rhythm
• DHEA: A precursor hormone that affects many other hormones

Identifying and addressing hormonal imbalances can be truly life-changing, resolving issues from fatigue and weight gain to mood disorders and sleep disruption.

9. Inflammatory Markers

Inflammation is your body’s natural response to threats, but when it becomes chronic, it underlies virtually all modern diseases. Key inflammatory markers to test include:

• High-sensitivity C-reactive protein (hs-CRP): A general marker of inflammation
• Homocysteine: Linked to cardiovascular risk and methylation issues
• Myeloperoxidase (MPO): An early warning sign for cardiovascular inflammation
• Trimethylamine N-oxide (TMAO): Reveals gut-heart health connections

Elevated inflammatory markers signal that something is brewing beneath the surface, prompting further investigation to identify and address the source.

10. Autoimmune Markers

Autoimmunity—when your immune system attacks your own tissues—is rising dramatically in our modern world. Important markers include:

• Antinuclear antibody (ANA): A screening test for various autoimmune conditions
• Extractable nuclear antigen panel: More specific antibodies that help identify particular autoimmune disorders

Early detection of autoimmunity allows for intervention before full-blown disease develops.

11. Micronutrient Testing

Despite their tiny size, micronutrients—essential vitamins, minerals, and antioxidants—play crucial roles in nearly every bodily function. Modern farming practices, processed foods, environmental toxins, and stressful lifestyles have made micronutrient deficiencies increasingly common.
Comprehensive micronutrient testing evaluates your cellular levels of key nutrients, including:

• Essential vitamins: B vitamins, vitamin C, vitamin E, and more
• Critical minerals: Magnesium, zinc, selenium, copper, and others
• Antioxidants: Glutathione, CoQ10, and other protective compounds
• Amino acids: Building blocks for proteins and neurotransmitters

Identifying and correcting specific micronutrient deficiencies can dramatically improve energy, immune function, mental clarity, and overall health. Often, targeted supplementation based on these results produces noticeable improvements within weeks.

12. Advanced Stool Testing

Your gut health impacts virtually every aspect of your wellbeing—from digestion and immune function to mental clarity and energy levels.
An advanced stool test like the GI-MAP uses DNA technology to provide detailed insights into:

• Your gut microbiome composition
• Presence of pathogens (harmful bacteria, parasites, viruses)
• Yeast overgrowth
• Digestive enzyme function
• Intestinal permeability (“leaky gut”)
• Gut inflammation

Annual stool testing allows you to catch and address imbalances before they cascade into chronic health issues.

Other Valuable Tests to Consider

While the above 12 tests form a solid foundation, these additional tests may be beneficial depending on your specific health concerns:

Heavy Metal Testing

Toxic metals like lead, mercury, arsenic, cadmium, and aluminum can accumulate in your body over time, undermining your health in subtle ways.

Celiac and Gluten Sensitivity Testing

For many people, gluten triggers inflammation and immune reactions. Testing can determine if this common protein is contributing to your health challenges.

Fatty Acid Testing

Essential fatty acids form the building blocks of cell membranes and influence inflammation, gene expression, and hormone production. Testing reveals if you have imbalances in these crucial nutrients.

Listen to Your Body’s Whispers

When something in your body falls out of balance, it begins communicating through subtle whispers—small shifts in biochemistry that may not yet cause noticeable symptoms.

If left unaddressed, these whispers gradually become louder until your body is screaming—manifesting as uncomfortable symptoms, illness, gut imbalances (esp SIBO and dysbiosis) , or chronic disease.

Proactive lab testing allows you to tune into these whispers early, making adjustments before minor imbalances escalate into serious health challenges.

As a practitioner who has walked this path personally, I gently remind you to listen when your body suggests something isn’t quite right—even when conventional tests say, “everything looks normal” or when symptoms are dismissed as “just stress” or “getting older.”

I wish I had listened to my body’s whispers 10 years ago and looked deeply beneath the surface—both physically and emotionally (you can read my story HERE).

This experience fuels my passion as a functional and integrative dietitian/nutritionist…as I use both my clinical skills, in depth history and recall, and testing to help my clients uncover root cause solutions.

Having overcome debilitating illness and heartbreak I was able to fight back and reclaim a life of resilience, purpose, and vibrant health, I know you can too!

Your body wants to heal and it is amazingly resilient!  Often it requires key testing, targeted interventions, and support to restore its natural harmony.

It’s time to take control of your health and test!