Functional medicine is an approach that looks at how medical history, lifestyle, nutrition and other health factors may relate to your symptoms. It works alongside conventional care and does not replace it. THRYVE Wellness Clinic offers it in San Antonio and Austin, with at home lab testing starting at $119 and virtual consultations.
If you are exploring functional medicine in San Antonio or Austin, it helps to understand what the approach involves, how it differs from conventional and integrative care, and what to look for when choosing a qualified provider. This guide defines the term, compares it with conventional and integrative care, covers its limits, and explains how functional medicine lab tests and an at-home blood draw work at THRYVE and what they cost.
Key Takeaways
Functional medicine considers how history, lifestyle and nutrition may relate to symptoms. It is used alongside conventional care, not instead of it.
The term is used in more than one way, so how a practice works matters more than its label.
It has limits. Lab results do not diagnose symptoms on their own, and more testing is not automatically better.
THRYVE offers virtual functional and integrative care in San Antonio and Austin, with lab plans starting at $119 for the Essential plan, which includes 75 biomarkers.
The Essential and Advanced plans do not include a provider consultation. Comprehensive includes one, and a standalone consultation costs $89.

What Is Functional Medicine?
Put simply, the functional medicine definition is an approach to care that considers how medical history, lifestyle, nutrition and other factors may contribute to a person's health concerns. Cleveland Clinic, which has run a dedicated functional medicine program since 2014, describes it as a patient-centered approach to chronic disease management in which providers listen to you and gather your medical history.
The central idea is to consider a person's health concerns in the context of their medical history, lifestyle and other relevant factors. Functional medicine may place particular emphasis on reviewing medical history, daily habits and nutrition, alongside testing when clinically appropriate.
It does not promise an outcome, and the approach differs from one practice to another. Cleveland Clinic describes a research and training program devoted to the scientific exploration of functional, lifestyle and behavioral interventions. The sections below show how to judge a practice by what it does.
How Is Functional Medicine Different From Conventional Medicine?
People ask what the difference is between functional medicine and regular medicine, and how functional medicine differs from conventional care. The honest answer is that they overlap more than the comparison suggests. Conventional primary care and functional medicine can both consider medical history, lifestyle, nutrition and laboratory results. Functional practices may place additional emphasis on these factors, but the specific approach depends on the provider and the patient's needs.
The two are not rivals. Cleveland Clinic states that its functional medicine team collaborates with, and does not replace, conventional medicine clinicians. THRYVE says the same about its own service: it does not replace primary care and is not intended for medical emergencies. Conventional care remains the route for emergencies and for situations that need an in-person examination.
Feature | Conventional primary care | Functional medicine | Integrative medicine |
Starting point | Your symptoms, history and examination | Your history, symptoms, lifestyle and nutrition, with a broad review | Your history and needs, using conventional and complementary approaches together |
How tests are used | Ordered by your clinician for a clinical question | Ordered when they can answer a specific question, and the range differs by practice | Depends on the practice and the question |
Role of lifestyle and nutrition | Considered, with the depth depending on the visit | A central part of the plan, according to practices that use the approach | A core part when it is coordinated with conventional care |
Relationship to the others | Can work alongside functional or integrative care | Described as working alongside conventional care, not replacing it | Coordinates conventional care with complementary approaches |
What to confirm before you start | Whether the visit covers your question | The provider's license, why each test is ordered and what is included in the price | How the practice coordinates with your other clinicians |
Instead of treating conventional and functional medicine as competing approaches, use the table to see how providers may differ in their assessments, recommendations and coordination of care. A practice that can answer the questions in the last row clearly is easier to evaluate, whichever label it uses.
What Is Root Cause Medicine?
Root cause medicine is a label that some practices use for functional medicine. The idea is to ask why a symptom is happening instead of only addressing the symptom. Cleveland Clinic frames it as the question "Why are you ill?" That question is a good one for any clinician to ask.
The phrase also needs care. A root cause may not be found, and a laboratory value is not a cause by itself. THRYVE's testing page says a value does not establish a diagnosis, that testing is not appropriate for all patients and that more testing is not automatically better. Treat a promise to find the one root cause of your symptoms with caution. A clear plan, an explanation of the evidence and a way to check progress are better signs.
What Does a Functional Medicine Doctor Do?
What is a functional medicine doctor? A functional medicine doctor is one kind of functional medicine provider. A functional medicine provider reviews your medical history, symptoms, lifestyle and health goals, and may recommend clinically appropriate testing. Next steps may include lifestyle recommendations, monitoring, treatment, referral or additional evaluation. Providers may have different professional qualifications, so confirm whether the person delivering care is a physician, nurse practitioner or another licensed healthcare professional.
People ask are functional medicine doctors MDs. It depends on the practice and the provider. THRYVE's care team page lists a physician and advanced practice nurse practitioners, and which provider you meet depends on your care. THRYVE's pages describe its clinicians as licensed providers, so this guide says provider unless a source says physician. Cleveland Clinic's page lists physicians, physician associates, nurse practitioners, dietitians and health coaches on its functional medicine team, which shows how much the care team can vary.
Whatever the title, check the license. If the provider is a physician or a physician assistant, you can check the license and public profile through the Texas Medical Board's Look Up a License tool, which shows Board orders where applicable. For other licensed professionals, use the appropriate Texas licensing authority. A practice that names its providers makes that check possible.
What Is an Example of Functional Medicine?
An example makes the idea concrete. Imagine an adult with persistent low energy who has results from a routine visit and wants a broader review. A functional visit may start with a long conversation about sleep, nutrition, stress, medicines and history. The provider may review the results the person already has, decide which additional markers would answer a specific question, and explain which would not add information.
When a provider consultation includes a review of test results, the provider can consider those findings alongside medical history, symptoms and other relevant information before discussing recommendations. These may include lifestyle and nutrition changes, a plan to recheck certain markers, a referral to another professional or no change at all. This is an illustration of how the approach may work, not a promise that any visit will find a cause or lead to improvement.
Notice what the example leaves out. It does not start with a panel of dozens of tests. It starts with a question. That is the difference between testing as a tool and testing as a goal.
What Should You Expect at a First Functional Medicine Visit?
A functional medicine consultation may begin with a discussion of your medical history, symptoms, medications, lifestyle and goals. Cleveland Clinic says its functional medicine providers listen to you and gather your medical history, and THRYVE describes its consultation as covering your results, health history, symptoms, goals and medications. A virtual visit takes place by secure video, so you can take it from home. Not all people start with a consultation: at THRYVE you can buy a lab plan without one and add a consultation later.
Preparing helps. Bring a list of the medicines and supplements you take, any earlier lab results you want reviewed, and the questions and goals you have written down. If a consultation follows lab testing, the provider reviews relevant findings alongside your broader clinical picture and discusses individualized recommendations, monitoring or referrals.
Ask the provider to explain the plan in plain terms. Which tests, if any, are being ordered and why? What would be rechecked, and when? What would lead to a change in the plan or a referral? A provider who answers clearly is giving you a way to judge the approach.
What Are the Disadvantages of Functional Medicine, and Is It Legit?
Understanding the potential disadvantages of functional medicine, and whether functional medicine is legit, means looking at the evidence, the qualifications of the provider, the cost of care and whether recommended testing is appropriate. The label is used in different ways. As NIH puts it, the term sometimes refers to a concept similar to integrative health and may also refer to an approach that more closely resembles naturopathy. Two practices that both say functional medicine may work very differently.
Evidence is another limit. Support differs from one recommendation to another, and a provider should be able to tell you what the evidence is for a specific recommendation, including for nutrition and lifestyle support.
Cost and testing are the practical limits. Some functional and integrative services are paid for directly instead of through insurance, and the total can add up when testing, consultations and follow-up are counted. A laboratory value does not establish a diagnosis by itself, a result outside the reference range does not necessarily mean you have a medical condition, and results can raise questions that need a provider to interpret.
So whether it is legit depends on the practice: who the licensed providers are, how they explain what they recommend, what the evidence is, and how they work with your other clinicians. A practice that welcomes those questions is easier to trust than one that avoids them.
How Does Functional Medicine Work With Your Primary Care Clinician?
It works alongside primary care, not in place of it. THRYVE states that its functional and integrative service does not replace primary care, and Cleveland Clinic says its team collaborates with conventional clinicians. In practice, that means telling each clinician about the others, sharing results where you choose to, and asking how the plans fit together.
Ask a functional provider how they handle referrals and how they share information with your other clinicians. Ask your primary care clinician whether they would order the same markers, because a physician's order may be billed differently from a self-pay plan. If a physician is already monitoring a condition, raise any new testing with that physician before you start.
Some situations need conventional care first. Symptoms that feel severe or sudden need emergency care, and some concerns need an in-person examination. A practice that tells you plainly when something is outside its scope is easier to trust than one that claims to cover all concerns.
Functional Medicine vs Integrative Medicine: What Is the Difference?
Functional medicine and integrative medicine overlap, but the terms are not interchangeable in all practices. The National Institutes of Health describes integrative health as bringing conventional and complementary approaches together in a coordinated way. It says functional medicine sometimes refers to a similar concept, but it may also refer to something different. So the terms overlap, and neither is a fixed category.
Terms around them add to the confusion. Terms such as holistic, complementary, alternative and integrative medicine are often used interchangeably, although they describe different approaches. As NIH uses the words, a complementary approach is used together with conventional care, and an alternative approach is used in place of it. Integrative care aims to coordinate the two. THRYVE describes integrative medicine as coordinating conventional care with evidence-informed approaches such as nutrition and lifestyle support.
The practical advice on functional vs integrative medicine is the same as before. Ask how a specific practice works, who the licensed providers are, how tests are chosen and how care is coordinated with your primary care clinician.
NIH: Complementary, Alternative, or Integrative Health: What's In a Name?
What Are Functional Medicine Lab Tests?
Functional medicine lab tests are laboratory tests used to investigate specific health questions as part of a broader clinical assessment. They are not a fixed set. Some practices use standard blood work, and some add specialized tests. A biomarker is a defined characteristic that is measured as an indicator of a biological process, and a panel groups several of them so they are reported together.
THRYVE offers three lab testing plans with panels covering 75, 100 and 110+ biomarkers. All three share a base set: a full blood count, liver and kidney markers, cholesterol and blood sugar, thyroid markers (TSH and free T4), iron, B12, folate and vitamin D, testosterone, SHBG and cortisol, inflammation markers (hs-CRP and ESR), and urine markers. The Advanced plan adds 25 more, including heart and lipid detail (ApoB, Lp(a) and small dense LDL), insulin and HOMA-IR, more thyroid and hormone markers, and homocysteine, magnesium and others. The Comprehensive plan adds 10 more, including creatine kinase, the PLAC test and several inflammation ratios.
THRYVE's pages do not describe how the urine specimen is collected, so ask the care team how that works for your address. THRYVE states that results are processed through CLIA-certified laboratories. A larger panel is not automatically a better one, because each added marker is one more value that may need interpretation.
How Much Does Functional Medicine Testing Cost? At-Home Lab Plans Starting at $119
People ask how much functional medicine costs and how much a functional medicine visit costs. There is no single answer, because the price depends on what is included: the consultation, the testing, the collection and any follow-up. If you are paying without insurance, compare the total price, not the cost of one visit, and ask what each number covers.
THRYVE prices lab testing by plan, and each plan includes one at-home blood draw, subject to confirmation that collection is available for the ordered tests and your address.
Plan | Price | Biomarkers | At-home blood draw | Provider consultation | Personalized care plan |
Essential | $119 | 75 | Included where available | Not included. Standalone consultation available for $89. | Available with a separate $89 consultation |
Advanced | $149 | 100 | Included where available | Not included. Standalone consultation available for $89. | Available with a separate $89 consultation |
Comprehensive | $249 | 110+ | Included where available | Included (30 minutes) | Included |
The Essential plan costs $119 as a one-time payment. It includes 75 biomarkers, one at-home blood draw where available, and your results report. It does not include a provider consultation. Advanced costs $149 and includes 100 biomarkers. Comprehensive costs $249 and includes 110+ biomarkers, a 30-minute provider consultation and a personalized care plan. A standalone consultation is available for $89.
THRYVE is self-pay and does not bill insurance, so the plan price is what you pay for the plan. THRYVE's area pages also say that advanced or specialized testing beyond a plan's included diagnostic credits may involve an additional cost, and that any applicable cost is explained before testing is ordered.
See THRYVE lab testing plans and pricing
How Does Functional Medicine Work at Home With THRYVE?
THRYVE offers lab testing plans with at-home collection where available, and a virtual consultation to review your results is included with the Comprehensive plan or available as a standalone add-on. The process has four steps. Because the labs in your plan are ordered automatically, you begin by choosing a plan.
Choose a plan and order. Pick the Essential, Advanced or Comprehensive plan. The labs included in the plan are ordered automatically when you purchase.
Book your collection. After purchasing your plan, follow the dashboard instructions to arrange collection. Available appointment times and collection methods depend on your test and address. Collection may involve an at-home kit, mobile phlebotomy or a partner laboratory, and the care team confirms which applies during intake.
Prepare and collect. You receive preparation instructions, including fasting guidance when your test requires it. The specimens are collected and handled according to the laboratory's requirements, and the designated laboratory processes them.
Review your results. Your results and report arrive through THRYVE's secure system, and turnaround time varies by test and laboratory. A provider consultation by secure video is part of the Comprehensive plan. With the Essential or Advanced plan, you can add a standalone consultation for $89.
To keep the plans straight: the Essential plan does not include a provider consultation. Comprehensive includes a 30-minute provider consultation and a personalized care plan. A results report is not the same as a provider consultation, so if you want a provider to review your results with you on a different plan, the standalone consultation is $89.
THRYVE functional and integrative medicine

Who May Find Virtual Functional Care With At-Home Collection Practical?
THRYVE's service page lists several situations where at-home collection may be practical: professionals who want to reduce travel and waiting-room time, parents and caregivers coordinating testing for family members, older adults, people with limited mobility, patients completing provider-ordered follow-up testing, and people who prefer a familiar setting.
San Antonio and Austin both spread across wide metro areas, so the distance to an office differs from one person to the next. Imagine arranging care for a parent who has difficulty leaving home. A video visit lets the parent speak with a provider from a familiar chair, and home collection may remove the trip for the blood draw. These are examples of how the service may help, not promises. Virtual care with at-home collection does not suit all tests or situations, and a provider determines whether it is appropriate.
THRYVE's Austin guide covers how online visits and at-home lab testing work for Austin patients in more detail.
How Do You Choose Between the Plans?
Start with the question you want answered, then check which plan includes the markers that relate to it. If the Essential plan at $119 includes the markers you are interested in, it may be a reasonable starting point. Confirm the panel contents, and talk with a qualified healthcare professional about which tests suit you.
If you want to discuss your results with a provider, compare the total cost of testing plus consultation. Essential with a standalone $89 consultation totals $208, and Advanced with one totals $238. Comprehensive costs $249 and includes a 30-minute provider consultation and a personalized care plan. A smaller panel that answers your question may serve you better than a large one that raises questions you did not intend to ask.
THRYVE's San Antonio guide covers how to decide whether testing or a consultation is the better first step.
Functional Medicine in San Antonio: Care and At-Home Lab Testing
Where Can You Find Functional Medicine in San Antonio and Austin?
When looking for a functional medicine provider in San Antonio or Austin, compare the provider's credentials, the services offered, whether appointments are virtual or in person, and the availability of testing in your area. If you search for functional medicine near me, remember that for a virtual service a nearby provider is one who is licensed to care for you in your state and who can arrange collection at your address. Patients looking for functional medicine San Antonio and Austin services can start with THRYVE's area pages.
THRYVE Wellness Clinic serves patients across Texas, including San Antonio and Austin. THRYVE's San Antonio page describes its service area as San Antonio and surrounding communities, including Stone Oak, Alamo Heights, the Medical Center, Alamo Ranch, Helotes and the South Side. THRYVE's Austin page describes an area that runs from Clarksville, Tarrytown and Old Enfield to West Lake Hills, Barton Creek, Circle C Ranch and The Domain, and into nearby communities including Round Rock, Cedar Park, Georgetown and Leander.
THRYVE says virtual care is available to patients in Texas and South Carolina, subject to provider availability and licensing requirements. THRYVE has no walk-in clinic. Whether at-home collection can be arranged at a specific address depends on the exact address, the test ordered and its collection requirements, and the care team confirms collection details during intake.
Lab testing and virtual care in San Antonio, TX
Functional and integrative medicine in Austin, TX
Lab Testing in San Antonio and Austin: Where Can You Get Blood Work Done?
Functional care can involve lab testing, so people ask where to get it. If you are looking for lab testing in San Antonio or Austin, you can compare collection sites, physician-arranged testing and services that offer at-home blood collection. At-home lab testing in San Antonio and at-home lab testing in Austin may be available, depending on the tests ordered and your address. Before arranging at-home blood collection or biomarker testing in San Antonio or Austin, confirm which tests you need, whether an existing laboratory order can be used, and which collection options are available at your address.
THRYVE offers lab testing plans with collection options that may include mobile phlebotomy, an at-home kit or a partner laboratory, depending on the test and collection address. THRYVE does not operate a public collection site. The labs in your plan are ordered when you purchase it, so you do not book an office visit first.
People also ask whether they can get blood work done without a doctor's order. The answer depends on the provider and the test, and some collection sites ask for a signed order before they collect. If you already hold an order from your own physician, ask the care team whether it can be accommodated before you buy a plan.
When Should You Talk to a Provider Before Starting?
Functional and integrative care suits some situations better than others. Talk with a licensed healthcare professional before you start if you take prescription medicines, if a physician is already monitoring a condition, or if you have symptoms that are new, worsening or worrying. A plan's panel may not match what your physician needs.
It is not for medical emergencies. If symptoms feel severe or sudden, seek emergency care instead of waiting for an appointment or a collection visit. Lab results do not diagnose symptoms on their own, and MedlinePlus advises following all instructions your provider gives and not stopping medicines unless your provider tells you to.
About THRYVE Wellness Clinic
THRYVE Wellness Clinic is a provider-led telehealth and mobile phlebotomy practice serving patients across Texas, including San Antonio and Austin. It offers lab testing plans, at-home blood collection in supported service areas depending on the test ordered and the collection address, and telehealth consultations with licensed providers. THRYVE does not operate a public collection site.
Frequently Asked Questions About Functional Medicine
What is functional medicine in simple terms?
Functional medicine is an approach that looks at how medical history, lifestyle, nutrition and other health factors may relate to your symptoms. It is used alongside conventional care, not instead of it, and the way it works differs from one practice to the next.
Is functional medicine covered by insurance?
THRYVE is self-pay and does not bill insurance. Each lab plan is a one-time payment, and the Essential plan starts at $119. Other practices may bill insurance for some services and not others, so ask each one what it bills and what the total will be.
What are the 5 R's of functional medicine?
The phrase refers to a framework that some practitioners use for gut-focused care, and the details differ between sources. THRYVE's pages do not describe its plans using it. If a practice uses it, ask the provider to explain each step and why it applies to you.
Do I need to visit a doctor before ordering functional medicine lab tests through THRYVE?
At THRYVE, the labs in your plan are ordered automatically when you purchase it, so you do not book an office visit first. If you already have an outside lab order, contact the care team to ask whether it can be accommodated. Other providers may ask for a signed order, so confirm before you book.
Can I see a functional medicine provider online in Texas?
THRYVE says virtual care is available to patients in Texas and South Carolina, subject to provider availability and licensing requirements. Visits take place by secure video, and at-home blood collection may be available depending on the test and your address.
Does THRYVE have a clinic I can walk into?
THRYVE does not operate a public walk-in clinic or laboratory collection site. It provides virtual care and coordinates at-home testing services where available.

Check Functional Medicine and Lab Testing Availability in San Antonio and Austin
Wondering whether functional medicine fits your situation? Contact THRYVE Wellness Clinic to confirm whether virtual care and at-home blood collection are available for your address and the tests you need. Lab plans start at $119 for the Essential plan with 75 biomarkers.




