Most serious health conditions don’t announce themselves with dramatic symptoms. High blood pressure earns the nickname “the silent killer” because it causes almost no discomfort while quietly damaging your heart, kidneys, and arteries for years. Pre-diabetes affects nearly 1 in 3 American adults — and more than 80% of them have no idea. Thyroid disease, vitamin deficiencies, high cholesterol, early hormonal imbalances — all of them can quietly undermine your health, energy, and longevity long before you feel a thing.
This is exactly why your 30s are the most important decade to get serious about preventive screening. You’re past the point where youth automatically compensates for lifestyle gaps, and you’re early enough to catch and correct problems before they compound into something much harder to treat.
The good news: you don’t need a complicated or expensive strategy. You need the right tests — done at the right intervals — and a healthcare provider willing to look beyond the basics. In this guide, we’re covering the 10 essential health tests every adult over 30 should have, what each one actually measures, what the results mean, and how often you need them.
| ⚡ Key Takeaways |
| • Many of the most serious health conditions — heart disease, diabetes, thyroid disease — are silent until advanced stages. |
| • Your 30s are the critical window to establish your health baseline and catch early warning signs. |
| • Most of these tests are covered by insurance as part of routine preventive care — there’s no reason to skip them. |
| • Standard annual physicals often don’t include all of these tests; you may need to specifically request them. |
| • Results in the ‘normal’ range aren’t always optimal — learn to understand the difference. |
| • These tests work best as a system: patterns across multiple markers tell a fuller story than any single number. |
🎯 Why Preventive Testing After 30 Is a Game-Changer
There’s a critical difference between reactive medicine — treating problems after they become symptomatic — and preventive medicine, which catches problems at the stage when they’re most treatable and often fully reversible. Your 30s are the ideal time to shift from one to the other.
Consider the trajectory of metabolic disease. Insulin resistance — the precursor to type 2 diabetes — typically begins developing 10-15 years before a diabetes diagnosis. During those years, it’s silently contributing to weight gain, fatigue, hormonal disruption, and cardiovascular risk. A single fasting insulin test can detect it years before standard glucose tests show any problem.
The same principle applies to cardiovascular risk, thyroid dysfunction, hormonal imbalances, and nutritional deficiencies. Catching them early doesn’t just prevent the disease — it gives you the information needed to make targeted lifestyle changes that work, rather than guessing.
One more critical point: your standard annual physical often doesn’t include most of these tests. Insurance covers them as preventive care, but you need to ask specifically. Walk into your next appointment with this list.
📊 The Master Checklist at a Glance
| Test | How Often | What It Catches |
| #1 Complete Blood Count (CBC) | Annually | Anemia, infection, immune issues |
| #2 Comprehensive Metabolic Panel | Annually | Blood sugar, kidney, liver function |
| #3 Full Lipid Panel (Cholesterol) | Every 1-2 years | LDL, HDL, triglycerides |
| #4 Fasting Insulin & HbA1c | Annually | Insulin resistance, pre-diabetes |
| #5 Full Thyroid Panel | Every 1-2 years | TSH, Free T3/T4, antibodies |
| #6 Vitamin D, B12 & Ferritin | Annually | Common deficiencies & fatigue drivers |
| #7 Hormonal Panel | Annually or as needed | Estrogen, testosterone, cortisol |
| #8 Blood Pressure & Resting Heart Rate | At every visit | Silent hypertension |
| #9 Body Composition & Metabolic Age | Every 6-12 months | Visceral fat, muscle mass ratio |
| #10 Skin, Eye & Dental Screening | Annually | Cancer, vision, gum disease |
| TEST #1 COMPLETE BLOOD COUNT (CBC) |
| Your body’s foundational health snapshot — anemia, infection, immune function, and more. |
The Complete Blood Count is one of the most ordered lab tests in medicine — and for good reason. It provides a comprehensive look at three major cell types in your blood: red blood cells (which carry oxygen), white blood cells (which fight infection), and platelets (which enable clotting). Individually and together, these markers paint a detailed picture of your baseline health.
What It Detects
In adults over 30, a CBC most commonly reveals iron-deficiency anemia — particularly in women with heavy periods. Anemia is one of the leading causes of persistent fatigue, weakness, and brain fog, and it’s frequently missed because the symptoms are so nonspecific. A CBC also detects infections, inflammatory conditions, clotting disorders, and early signs of immune system dysfunction.
Abnormal white blood cell counts can indicate everything from a simple viral illness to autoimmune conditions or, in rare cases, hematological cancers. Platelet abnormalities can indicate bleeding disorders or inflammatory diseases. As a routine screen, the CBC is both incredibly broad and surprisingly revealing.
What to Ask For
- CBC with differential (breaks down white blood cell types for more information)
- If anemia is suspected, also request iron studies (serum iron, TIBC, ferritin) — ferritin in particular is a sensitive early marker of iron depletion before anemia develops
| 📋 Ask For CBC with differential | 🔁 Frequency Annually | ⚠️ Watch For Low hemoglobin, high WBC, low platelets |
| TEST #2 COMPREHENSIVE METABOLIC PANEL (CMP) |
| The report card for your liver, kidneys, blood sugar, and electrolyte balance. |
The Comprehensive Metabolic Panel gives your doctor a window into the health of your most vital organ systems. It measures 14 different biomarkers covering blood glucose, kidney function, liver function, and electrolyte and fluid balance — all in a single blood draw.
What It Detects
Blood glucose (fasting) within the CMP gives a snapshot of your blood sugar at a single point in time — an early warning for pre-diabetes or diabetes. Kidney markers (BUN and creatinine) assess how well your kidneys are filtering waste from your blood. Liver enzymes (ALT, AST, ALP) detect liver stress from alcohol, medications, non-alcoholic fatty liver disease (NAFLD), or other causes.
NAFLD is now estimated to affect approximately 25% of American adults and is strongly linked to insulin resistance, metabolic syndrome, and excess visceral fat. It causes no symptoms in its early stages and is most commonly detected through elevated liver enzymes on a routine CMP.
Electrolyte levels (sodium, potassium, calcium, bicarbonate) reveal hydration status, kidney function, and mineral balance — all of which affect energy, muscle function, and heart rhythm.
| 📋 Ask For Comprehensive Metabolic Panel | 🔁 Frequency Annually | ⚠️ Watch For High glucose, elevated liver enzymes, abnormal kidney function |
| TEST #3 FULL LIPID PANEL (CHOLESTEROL) |
| Far more than just ‘good’ and ‘bad’ cholesterol — a nuanced cardiovascular risk assessment. |
A lipid panel measures the fats circulating in your bloodstream. Most people have had a basic cholesterol check, but the standard total cholesterol number is a poor predictor of cardiovascular risk on its own. A full lipid panel — and ideally an advanced lipid panel — tells a much more complete story.
What to Look Beyond LDL
Standard panels measure total cholesterol, LDL (low-density lipoprotein), HDL (high-density lipoprotein), and triglycerides. But the ratio of these markers matters more than any individual number. High triglycerides combined with low HDL is a particularly worrying pattern associated with insulin resistance and metabolic syndrome.
Advanced lipid testing — including LDL particle number (LDL-P) and small dense LDL particles — provides significantly better cardiovascular risk prediction than LDL cholesterol alone. Small, dense LDL particles are far more likely to penetrate arterial walls and contribute to plaque buildup than large, buoyant LDL particles. Two people with identical LDL cholesterol levels can have dramatically different actual cardiovascular risk based on particle size and number.
If you have a family history of heart disease or abnormal lipids, ask specifically for an advanced lipid panel including LDL-P and ApoB.
Optimal vs. Normal
- Total cholesterol: Under 200 mg/dL (but context matters)
- LDL: Under 100 mg/dL is optimal for most adults
- HDL: Above 60 mg/dL is protective; below 40 (men) or 50 (women) is a risk factor
- Triglycerides: Under 100 mg/dL is optimal; above 150 is concerning
| 📋 Ask For Full lipid panel + ApoB if possible | 🔁 Frequency Every 1-2 years | ⚠️ Watch For High LDL, low HDL, elevated triglycerides |
| TEST #4 FASTING INSULIN & HBA1C |
| The early warning system for insulin resistance — detects blood sugar problems years before standard tests. |
Fasting glucose — the standard blood sugar test — doesn’t become abnormal until insulin resistance is quite advanced. By the time your fasting glucose is elevated, your body has typically been compensating for years. Fasting insulin and HbA1c tell the story much earlier.
Why Fasting Insulin Is the Critical Test
Insulin is the hormone your pancreas releases to move glucose from your blood into your cells. When cells become resistant to insulin’s signal, the pancreas compensates by producing more and more insulin. Fasting insulin levels become elevated years before fasting glucose does. A high fasting insulin in someone with a completely normal fasting glucose is the hallmark of early insulin resistance.
Chronically high insulin doesn’t just signal future diabetes risk. It actively promotes fat storage (particularly visceral fat), suppresses fat burning, drives hormonal imbalances (high insulin stimulates androgen production, contributing to PCOS and hormonal acne), increases inflammation, and raises cardiovascular risk. Catching it early is one of the highest-value tests on this list.
HbA1c: The 90-Day Blood Sugar Average
Hemoglobin A1c (HbA1c) measures your average blood sugar over the past 2-3 months by assessing how much glucose has attached to your red blood cells. It’s more clinically useful than a single fasting glucose snapshot because it reflects your overall blood sugar pattern rather than one moment in time.
- Normal: Below 5.7%
- Pre-diabetes: 5.7-6.4% — the optimal intervention window
- Diabetes: 6.5% or higher
- Optimal for longevity and metabolic health: Below 5.3%
| 📋 Ask For Fasting insulin + HbA1c + fasting glucose | 🔁 Frequency Annually | ⚠️ Watch For High fasting insulin, HbA1c above 5.3% |
| TEST #5 FULL THYROID PANEL |
| The most underdiagnosed hormone condition in adults — especially women in their 30s. |
The thyroid gland produces hormones that regulate the metabolic rate of every cell in your body. When it’s underperforming — even slightly — the effects ripple across your entire system: fatigue, weight gain, brain fog, hair thinning, cold intolerance, depression, and constipation are just the most common symptoms.
Why a Basic TSH Test Isn’t Enough
Most standard physicals only check TSH (thyroid-stimulating hormone). TSH is the brain’s signal to the thyroid to produce more hormone. It can be within the “normal” range while actual thyroid hormone levels (Free T3 and Free T4) are suboptimal — a pattern called subclinical hypothyroidism.
Free T3 is the active form of thyroid hormone that actually enters cells and drives metabolic activity. Many people convert T4 poorly to T3 — and this conversion problem won’t show up on a TSH test alone. Additionally, Hashimoto’s thyroiditis — an autoimmune condition and the most common cause of hypothyroidism in the US — is only detected by testing thyroid antibodies (TPO and TgAb). You can have Hashimoto’s with a normal TSH and suffer significant symptoms for years without a diagnosis.
The Full Panel to Request
- TSH — the standard screening marker
- Free T4 — the storage form of thyroid hormone
- Free T3 — the active, metabolically potent form
- Reverse T3 — elevated levels indicate poor T4-to-T3 conversion
- TPO Antibodies and TgAb — autoimmune thyroid disease markers
| 📋 Ask For Full thyroid panel with antibodies | 🔁 Frequency Every 1-2 years | ⚠️ Watch For Low Free T3, elevated TSH, positive antibodies |
| TEST #6 VITAMIN D, B12 & FERRITIN |
| The three deficiencies most commonly behind unexplained fatigue, mood issues, and cognitive decline. |
These three markers don’t always get their own spotlight, but they should. Vitamin D, B12, and ferritin are among the most common nutritional deficiencies in American adults over 30 — and all three cause symptoms that are easily mistaken for stress, aging, or mental health issues.
Vitamin D: The Hormone Masquerading as a Vitamin
Vitamin D functions more like a hormone than a nutrient, regulating over 1,000 genes and playing critical roles in immune function, mood regulation, muscle function, bone health, and cardiovascular health. An estimated 40-50% of American adults are deficient. Optimal levels are generally considered to be 50-80 ng/mL — significantly above the clinical deficiency threshold of 20 ng/mL, meaning many people with “normal” levels are still functionally insufficient.
B12: Critical for Nerves, Energy, and Mood
Vitamin B12 is essential for red blood cell formation, neurological function, and DNA synthesis. Absorption requires a protein called intrinsic factor produced by the stomach — and this production declines with age, stress, certain medications (particularly metformin and acid blockers), and in those following plant-based diets. Deficiency causes profound fatigue, numbness and tingling, depression, and cognitive decline.
Ferritin: The Early Warning for Iron Depletion
Ferritin is the storage form of iron. It becomes depleted before anemia develops on a CBC — making it a critical early marker. Low ferritin causes hair loss, fatigue, poor exercise tolerance, and brain fog even when hemoglobin is still technically normal. For women, optimal ferritin is generally above 50-70 ng/mL.
| 📋 Ask For 25-OH Vitamin D, serum B12, ferritin | 🔁 Frequency Annually | ⚠️ Watch For D below 50 ng/mL, B12 below 500 pg/mL, ferritin below 50 |
| TEST #7 COMPREHENSIVE HORMONAL PANEL |
| The master control panel for energy, mood, weight, libido, and long-term vitality. |
As discussed in depth in our companion article on hormonal imbalance after 30, hormones regulate virtually every function in your body. A comprehensive hormonal assessment goes far beyond what a standard physical covers and gives you a clear picture of where your hormonal health stands.
For Women
- Estradiol (E2) — the primary active estrogen
- Progesterone — test on Day 21 of your cycle for the most meaningful result
- FSH and LH — pituitary hormones that reveal reproductive status and early perimenopause
- Free and total testosterone — low testosterone in women causes fatigue and low libido
- DHEA-S — an adrenal hormone that declines with stress and age
- Fasting cortisol or 4-point salivary cortisol — assesses adrenal rhythm
For Men
- Free and total testosterone — the most critical marker for men over 30
- Estradiol (E2) — men need estrogen too, but elevated levels signal a problem
- LH and FSH — assess whether the issue is testicular or pituitary
- DHEA-S — adrenal hormone supporting energy and resilience
- SHBG (Sex Hormone Binding Globulin) — affects how much testosterone is biologically available
- Fasting cortisol — elevated cortisol suppresses testosterone
| 📋 Ask For See gender-specific list above | 🔁 Frequency Annually or as symptoms arise | ⚠️ Watch For Low testosterone, high cortisol, estrogen dominance |
| TEST #8 BLOOD PRESSURE & RESTING HEART RATE |
| The simplest tests on this list — and among the most life-saving when caught early. |
Hypertension (high blood pressure) affects nearly half of American adults and is a leading cause of heart attack, stroke, and kidney failure. It causes no symptoms in the vast majority of cases — often for decades. This is why checking blood pressure consistently is one of the most non-negotiable things on this list.
What the Numbers Mean
Optimal blood pressure is 120/80 mmHg or below. Stage 1 hypertension begins at 130/80 mmHg. Many adults assume that because they’ve never been told their blood pressure is high, it must be fine — but blood pressure should be measured at every healthcare visit, and ideally monitored at home as well, since “white coat hypertension” (elevated readings only in clinical settings) is common.
Resting Heart Rate: Your Cardiovascular Fitness Indicator
A lower resting heart rate generally indicates better cardiovascular fitness and autonomic nervous system health. A resting heart rate consistently above 80-90 beats per minute — especially in someone who isn’t athletic — is associated with increased cardiovascular risk, even when blood pressure is normal. Resting heart rate also serves as a sensitive indicator of overtraining, illness, dehydration, and chronic stress.
- Optimal resting heart rate: 50-70 bpm for most healthy adults
- Athletes may have resting heart rates in the 40s — this is normal and healthy
- Consistently above 90 bpm warrants investigation
| 📋 Ask For Blood pressure cuff + pulse check | 🔁 Frequency Every healthcare visit + monthly at home | ⚠️ Watch For BP above 130/80, resting HR above 90 bpm |
| TEST #9 BODY COMPOSITION & METABOLIC HEALTH ASSESSMENT |
| Weight alone is a poor health indicator — this tells you what’s actually inside. |
BMI (body mass index) — the weight-to-height ratio used for decades — is increasingly recognized as a poor measure of actual health. It tells you nothing about how much of your weight is muscle versus fat, or where that fat is distributed. Body composition assessment gives you far more actionable information.
Why Body Composition Matters More Than Scale Weight
Visceral fat — the fat stored around your abdominal organs — is metabolically active and inflammatory in ways that subcutaneous fat (the fat under your skin) is not. High visceral fat is associated with insulin resistance, cardiovascular disease, hormonal disruption, and increased cancer risk, independent of your overall weight or BMI. Someone of “normal” BMI can carry a dangerous amount of visceral fat, while someone technically “overweight” by BMI can have an excellent fat-to-muscle ratio.
Assessment Options
- DEXA scan — the gold standard for body composition measurement; provides muscle mass, fat mass, bone density, and visceral fat estimate; widely available through medical imaging centers
- Bioelectrical impedance analysis (BIA) — available in many gyms and medical offices; less precise than DEXA but useful for tracking trends over time
- Waist circumference and waist-to-hip ratio — simple, free, and highly predictive of visceral fat; ideal waist circumference is under 35 inches for women and under 40 inches for men
- Waist-to-height ratio below 0.5 is a better cardiovascular risk predictor than BMI alone
| 📋 Ask For DEXA scan or waist circumference | 🔁 Frequency Every 6-12 months | ⚠️ Watch For High visceral fat, waist above targets, low muscle mass |
| TEST #10 SKIN, EYE & DENTAL SCREENING |
| Three annual appointments that protect three vital systems — and frequently catch problems well beyond their specialty. |
Annual Skin Cancer Screening
Skin cancer is the most common cancer in the United States. The American Academy of Dermatology recommends annual full-body skin exams starting in your 30s — sooner if you have fair skin, a history of sunburns, or a family history of skin cancer. Melanoma in particular can be life-threatening when caught late and highly treatable when caught early. A yearly 15-minute dermatology appointment is one of the highest-return health investments you can make.
Annual Eye Exam
Beyond vision correction, comprehensive eye exams can detect high blood pressure (visible in the blood vessels at the back of the eye), early diabetes (which causes characteristic retinal changes), glaucoma, and macular degeneration. Many of these conditions cause no visual symptoms in early stages. Additionally, spending the majority of your day looking at screens — as most adults over 30 do — makes regular eye health monitoring more important than ever.
Annual Dental Exam and Cleaning
Emerging research continues to strengthen the link between periodontal (gum) disease and systemic health conditions including cardiovascular disease, diabetes, and Alzheimer’s disease. Chronic gum inflammation releases inflammatory markers that enter the bloodstream and contribute to systemic inflammation. Regular dental cleanings and exams are genuine preventive health care, not merely cosmetic maintenance.
| 📋 Ask For Dermatology, ophthalmology, dentist | 🔁 Frequency Annually each | ⚠️ Watch For New or changing moles, eye pressure, gum recession |
⚠️ Common Mistakes People Make With Health Testing After 30
| Don’t Let These Errors Undermine Your Health Strategy |
| • Only testing when you feel sick — the entire value of these tests is catching problems before symptoms appear. |
| • Accepting ‘normal’ without understanding ‘optimal’ — reference ranges are based on average sick populations, not optimal health. Learn the difference. |
| • Relying on a standard annual physical to cover everything — basic physicals often miss the most revealing tests. Request specifically. |
| • Not tracking results over time — a single number means less than a trend. Keep your own records and track changes year over year. |
| • Ignoring slightly elevated results — early, mild abnormalities are the most actionable. Don’t wait until numbers become severely abnormal. |
| • Skipping mental health as part of the picture — depression, anxiety, and chronic stress are measurably detectable (through cortisol, inflammatory markers) and directly affect physical health. |
💊 Supplements to Support What Your Tests Reveal
Once you have your results, targeted supplementation becomes far more precise — you’re filling documented gaps rather than guessing. Here are the supplements most commonly indicated based on the tests above:
Vitamin D3 + K2: For the majority of adults whose testing reveals insufficient or deficient vitamin D levels. D3 paired with K2 ensures calcium goes to bones rather than arteries. Standard doses range from 2,000-5,000 IU daily depending on baseline levels — retest after 3 months.
Magnesium Glycinate: Supports insulin sensitivity, thyroid conversion, blood pressure regulation, sleep quality, and stress resilience — addressing multiple markers simultaneously. 300-400mg before bed is the standard approach.
Omega-3 Fish Oil (EPA/DHA): Clinically shown to reduce triglycerides, lower inflammatory markers, support cardiovascular health, and improve insulin sensitivity — directly addressing several cardiovascular and metabolic markers.
Methylated B-Complex: For those with B12 deficiency or the MTHFR gene variant (common), methylated forms of B12 and folate are significantly better absorbed and utilized than standard synthetic forms.
Berberine: A plant-derived compound with strong clinical evidence for improving fasting glucose, HbA1c, and lipid panels — particularly useful for those with early insulin resistance or pre-diabetes who prefer to start with a natural intervention.
Ashwagandha (KSM-66): For those whose cortisol, testosterone, or thyroid function warrants support — this adaptogen has meaningful clinical evidence across all three of these areas simultaneously.
❓ Frequently Asked Questions: Health Tests After 30
| Q: Are these tests covered by insurance? |
| Most of these tests are covered as preventive care under the Affordable Care Act, meaning they should be available at no cost (or low cost) when ordered as routine screening by your primary care provider. However, coverage varies by plan and specific tests. If cost is a concern, direct-to-consumer lab services like Ulta Lab Tests or Quest Direct allow you to order many of these tests yourself at significantly reduced prices without insurance. |
| Q: How often should I get a full panel of these tests done? |
| Most of these tests are best done annually. Some — like thyroid and lipid panels — can be done every 1-2 years if results are consistently optimal. Others, like blood pressure and heart rate, should be checked at every healthcare visit and ideally monitored at home monthly. Your doctor can help you create a testing schedule based on your individual risk factors and results. |
| Q: What if my doctor won’t order all of these tests? |
| You have options. First, advocate for yourself by explaining you want a comprehensive preventive panel. Second, consider seeing a functional medicine or integrative medicine physician, who are typically more comfortable with comprehensive testing. Third, use direct-to-consumer lab testing services to order any tests your doctor won’t. Your health is worth the effort of finding a provider who takes preventive care seriously. |
| Q: What does ‘optimal’ mean versus ‘normal’ in lab results? |
| Reference ranges on lab results represent the range of values seen in the general population — which includes a lot of sick or suboptimal people. ‘Optimal’ refers to the range associated with the lowest disease risk and best health outcomes. For example, a ‘normal’ vitamin D is above 20 ng/mL, but optimal for health and hormonal function is 50-80 ng/mL. Learning the optimal ranges — not just the normal ranges — is one of the most valuable things you can do with your lab results. |
| Q: Should I fast before these tests? |
| Yes — for most of the blood tests on this list, fasting for 8-12 hours beforehand gives the most accurate results. This is particularly important for fasting glucose, fasting insulin, lipid panel, and the CMP. You can drink water. Thyroid, CBC, and vitamin levels can technically be drawn non-fasted, but fasting for all of them in one blood draw is the most efficient approach. |
✅ Your Preventive Health Action Plan
| Take These Steps in Order |
| 1. Schedule a comprehensive appointment — book with your primary care provider and request a full preventive panel. Use this article as your reference list when speaking with them. |
| 2. Fast for 10-12 hours before your blood draw — this ensures accurate glucose, insulin, and lipid results. Schedule your appointment for first thing in the morning. |
| 3. Get your 3 specialty appointments on the calendar — book a dermatologist, ophthalmologist, and dentist for this year. These three are easy to defer indefinitely without a scheduled date. |
| 4. Buy a home blood pressure cuff — measure your blood pressure at home at the same time each morning for a week to establish your true baseline away from clinical settings. |
| 5. Review your results with context — ask your provider to explain not just whether your results are ‘normal’ but whether they’re optimal. Keep your own digital record of all results for year-over-year tracking. |
🌟 Conclusion: Knowledge Is Your Most Powerful Health Tool
The most common thread among people who develop serious, preventable health problems in their 40s and 50s is that the warning signs were present years earlier — they just weren’t looked for. The tests in this guide aren’t about fear or pessimism. They’re about the power of knowing what’s actually happening inside your body, in real time, when you can still do something meaningful about it.
You don’t need to overhaul your entire life to dramatically improve your long-term health. You need information, and you need to act on it. A few hours of testing and a handful of targeted lifestyle adjustments — informed by what your numbers actually show — can genuinely change the trajectory of the next 30 years.
Your 30s are not the beginning of decline. They’re the beginning of the era in which your choices matter most. Get the tests. Know your numbers. Take the next step. Your future self is counting on the decisions you make today.
Medical Disclaimer: This article is intended for informational and educational purposes only and does not constitute medical advice, diagnosis, or treatment. The tests and reference ranges mentioned are general guidelines — individual health needs vary. Always consult a qualified healthcare provider before ordering lab tests, interpreting results, or making changes to your health regimen based on this information.
