SIBO Breath Test: Types and Accuracy | Functional Medicine Finder

Last updated: April 2026

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Quick Answer

The DUTCH Test (Dried Urine Test for Comprehensive Hormones) has been available since 2012 and provides a detailed look at sex and adrenal hormones, along with their metabolites, using at-home dried urine samples collected over 24 hours.
Precision Analytical created the DUTCH test, aiming to offer a more complete picture of hormone metabolism than traditional blood or saliva tests.
The GI-MAP (Microbial Assay Plus) is a comprehensive stool test from Diagnostic Solutions Laboratory that uses qPCR technology to detect parasites, bacteria, H. pylori, and fungi.
GI-MAP results are typically available within 7-10 business days.

In functional medicine, understanding the root causes of health issues often requires detailed diagnostic testing. Two prominent tests, the DUTCH Test and the GI-MAP, offer unique insights into hormone balance and gut health, respectively. The DUTCH Test, or Dried Urine Test for Comprehensive Hormones, has been around since 2012, providing a non-invasive way to assess sex and adrenal hormones, including their metabolites, from dried urine samples collected at home over a 24-hour period Precision Analytical's DUTCH Test details. This comprehensive analysis aims to give practitioners a more complete picture of hormonal status than traditional blood or saliva tests. Similarly, the GI-MAP, or Microbial Assay Plus, delves into the gut microbiome, using advanced DNA-based technology to identify various organisms and metabolic markers in a stool sample. Diagnostic Solutions Laboratory, which offers the GI-MAP, typically provides results within 7-10 business days, helping to inform personalized health interventions. Both tests emphasize a holistic approach to health, recognizing that individual variations in symptoms often stem from different underlying causes.

What is the DUTCH Test and How Does it Work?

The DUTCH Test, an acronym for Dried Urine Test for Comprehensive Hormones, is a diagnostic tool designed to provide a comprehensive view of a patient's hormonal status. It works by analyzing specific hormone levels and their metabolites from dried urine samples, which are collected at home. This methodology sets it apart from more traditional testing methods that often rely on blood or saliva.

Acronym and Origin

DUTCH stands for Dried Urine Test for Comprehensive Hormones. This name highlights both the sample type—dried urine—and the comprehensive nature of the hormonal assessment. Precision Analytical, founded by Mark Newman, MS, created the test. The DUTCH test has been around since 2012, offering a new approach to hormone evaluation for healthcare providers and patients alike The DUTCH Test: Is It Worth it?. Since its inception, it has aimed to provide deeper insights into hormone health.

Sample Collection Process

To take the DUTCH test, patients collect four to five dried urine samples over a 24-hour period. These samples are gathered at specified times using filter paper designed for this purpose. The timing of collection is important for capturing the natural fluctuations of hormones throughout the day. Paying careful attention to when to collect samples and how long to let them dry is part of the process. This at-home collection method makes the test non-invasive and convenient for patients, allowing them to complete the sampling process from the comfort of their own home.

Advanced Analysis Method

The analysis of DUTCH test samples uses a highly accurate method called LC-MS/MS (Liquid Chromatography-Mass Spectrometry/Mass Spectrometry). Precision Analytical states that its rigorous commitment to gold-standard methodologies has led to multiple peer-reviewed studies. These studies validate dried urine as a reliable alternative to blood or saliva for monitoring many forms of hormone therapy. This advanced technology helps ensure the accuracy of the results, providing reliable data for clinical interpretation.

Beyond Basic Diagnostics

The DUTCH Test goes beyond basic hormone measurement. It aims to offer a complete picture of patient hormone levels and metabolism. This comprehensive approach helps practitioners solve complex clinical questions. By providing detailed analysis of hormone balance, the test helps identify root causes of symptoms and monitor treatment efficacy. The convenience of at-home collection combined with detailed analysis makes it a valuable tool in functional medicine for understanding a patient's overall health and well-being.

What Does the DUTCH Test Measure?

The DUTCH Test provides a comprehensive analysis of various hormones and their metabolites, offering a detailed picture of the body's endocrine function. It assesses crucial hormones that impact overall health, moving beyond simple hormone levels to explore how the body processes and uses them. This detailed data helps healthcare providers pinpoint the underlying causes of a patient's symptoms.

Adrenal and Sex Hormones

One of the primary focuses of the DUTCH Test is the assessment of adrenal and sex hormones. This includes key hormones such as cortisol, melatonin, estrogen, progesterone, and testosterone production. These hormones play vital roles in numerous bodily functions, from stress response and sleep cycles to reproductive health and overall vitality. The test is designed to be beneficial for all genders, providing insights into these essential hormonal pathways. By measuring these hormones, the DUTCH Test helps reveal the status of these important chemical messengers in the body.

Analysis of Hormone Metabolites

What sets the DUTCH Test apart is its ability to analyze hormone metabolites. While traditional hormone diagnostics may provide limited information about hormonal status, the DUTCH Test provides practitioners with a complete picture of hormone levels and how the body metabolizes them. "The DUTCH test examines not only hormone levels and their patterns over 24 hours, but also how the body is metabolizing those hormones," said Dawn Derrick, a nurse practitioner with Derrick Health. This includes looking at the breakdown products of hormones, which can indicate how effectively the body is processing and eliminating them. For example, understanding estrogen metabolites can provide insights into potential risks or imbalances related to estrogen dominance or detoxification pathways. This broader view of hormone balance is critical for tailored health interventions.

Identifying Root Causes of Symptoms

The comprehensive data provided by the DUTCH Test helps providers identify the root causes of various hormone-related symptoms. This extensive information allows for personalized treatment plans, moving beyond symptom management to address the underlying issues. Whether patients are dealing with conditions such as fibroids, infertility, PCOS (Polycystic Ovary Syndrome), low testosterone, or perimenopause, the DUTCH Test can deliver necessary insights. It also assists those simply looking to optimize their hormone health. By understanding the full story of a patient's hormones, practitioners can develop more effective strategies to improve health outcomes and provide peace of mind, all from the comfort of the patient's home.

Additional Biomarkers

Beyond sex and adrenal hormones, the DUTCH Test can also assess additional markers. These may include neurotransmitter and oxidative stress metabolites. This expanded view helps to paint a more accurate and holistic hormone picture. For example, imbalances in neurotransmitter metabolites could indicate issues affecting mood, sleep, or cognitive function, which are often linked to hormonal health. Oxidative stress markers can point to cellular damage and inflammation, further informing a comprehensive treatment approach. The integration of these additional biomarkers makes the DUTCH Test a popular choice among functional medicine providers seeking a deeper understanding of patient physiology.

How Does the DUTCH Test Compare to Other Hormone Tests?

The DUTCH Test offers a distinct approach to hormone assessment compared to traditional methods like blood or saliva tests. Its methodology aims to provide a more comprehensive and convenient experience for both practitioners and patients, focusing on a broader range of hormonal insights.

Limitations of Traditional Testing Methods

Traditional hormone diagnostics often provide limited information about a patient's overall hormonal status. Blood tests typically measure circulating hormone levels at a single point in time, which can miss the dynamic fluctuations of hormones throughout the day. Saliva tests offer some insight into free, unbound hormones, but they may also have limitations in providing a complete picture of hormone metabolism. These traditional methods might not fully capture how the body is producing, processing, and eliminating hormones, making it challenging to identify the root causes of complex hormone-related symptoms. Without the right kind of testing, it can be tricky to tell if hormones are off balance, as symptoms often mimic other conditions Holistic Health Code on DUTCH Test benefits.

The DUTCH Test's Comprehensive Approach

The DUTCH Test differs from traditional hormone testing by offering a more complete picture. It provides additional information, including hormone and neurotransmitter metabolites. This means it looks beyond just the levels of hormones to see how the body is breaking them down and what byproducts are being created. This expanded view helps practitioners understand the entire hormone pathway, from production to metabolism and excretion. For example, it can show how estrogen is being detoxified, which is crucial for understanding conditions like estrogen dominance or related health risks. This comprehensive analysis allows for a deeper understanding of hormone balance and the body's overall well-being.

Non-Invasive and Convenient Collection

One of the significant advantages of the DUTCH Test is its non-invasive and convenient sample collection method. Patients collect four to five dried urine samples at home over a 24-hour period. This contrasts with blood tests, which require a visit to a lab or clinic, and can be less comfortable for some individuals. The at-home collection removes geographical barriers and allows patients to collect samples in their natural environment, potentially providing a more accurate reflection of their daily hormone patterns. This ease of collection makes it a practical option for many, especially those with busy schedules or limited access to phlebotomy services.

Detailed Analysis and Clinical Application

The DUTCH Test provides a detailed analysis of hormone balance, which is crucial for identifying root causes and monitoring treatment efficacy. It goes beyond simply reporting hormone levels to offer insights into how hormonal shifts can significantly impact a patient's overall health and well-being. The test is grounded in peer-reviewed science and clinical application, according to Precision Analytical. This commitment to scientific rigor supports its use in developing personalized treatment plans. By offering a more complete and detailed assessment, the DUTCH Test aims to redefine patient outcomes by allowing providers to address the underlying hormonal imbalances rather than just managing symptoms.

Is the DUTCH Test Backed by Science?

The scientific backing of the DUTCH Test is a point of discussion within the medical community. Precision Analytical, the creator of the test, emphasizes its commitment to scientific rigor and peer-reviewed research, while some experts note a desire for more independent validation.

Precision Analytical's Stance on Science

Precision Analytical states that its hormone metabolite test is grounded in peer-reviewed science and clinical application. The company highlights its rigorous commitment to gold-standard methodologies in hormone testing. They assert that this commitment has yielded multiple peer-reviewed studies validating dried urine as a reliable alternative to blood or saliva for monitoring many forms of hormone therapy. Precision Analytical uses LC-MS/MS, which they describe as the most accurate method available for their tests. This method is trusted by thousands of providers and patients worldwide, according to the company. They also provide expert education and clinical support to providers, aiming to continually improve patient lives through cutting-edge hormone health insights.

Examples of Research Provided

Precision Analytical offers examples of research related to its methodology. These include case reports and studies that delve into specific aspects of hormone health and testing. For instance, they reference "Using Urine Hormone Testing to Personalize Dietary Supplementation for Hormone Health: A Case Report of a Male with Low Testosterone." Another example is "DIM’s Effects on the Urinary Estrogen Profile When Prescribed Menopause Hormone Therapy." These studies showcase the application of urine hormone testing in specific clinical scenarios and contribute to the body of evidence supporting the DUTCH methodology. While these studies are presented by the test's creator, they indicate an ongoing effort to support the test with scientific inquiry.

Expert Perspectives on Validation

Despite the research provided by Precision Analytical, some experts and medical professionals express a desire for more robust independent validation. For example, an endocrinologist focusing on evidence-based approaches to hormone health shares important considerations about the DUTCH test, suggesting a thoughtful perspective on its capabilities and limitations The DUTCH Test: Expert Hormone Testing Guide | What You Should Know Before Testing. While the makers of the DUTCH urine test claim the panel provides a more comprehensive look at hormone metabolism than traditional tests, some sources indicate that the test lacks backing from robust independent, peer-reviewed studies to substantiate all these claims. Still, some providers use it in context with other tests, suggesting that while it may not have universal independent endorsement for every claim, it is still considered a valuable tool by a segment of the healthcare community when integrated into a broader diagnostic strategy.

Ongoing Dialogue in Functional Medicine

The discussion around the DUTCH Test's scientific backing reflects a broader conversation in functional medicine about diagnostic tools that offer comprehensive, root-cause insights. While the test is popular among wellness influencers and integrative health practitioners, the emphasis on evidence-based approaches means that ongoing research and independent validation are crucial for broader acceptance. The test's ability to provide detailed analysis of hormone balance and identify root causes is highly valued in personalized medicine. However, the call for more independent evidence highlights the continuous need for rigorous scientific scrutiny for all diagnostic tools, especially those that deviate from traditional testing paradigms.

What is the GI-MAP Test?

The GI-MAP (Microbial Assay Plus) is a comprehensive stool test that offers detailed insights into the gut microbiome and various microbial imbalances. It is a key diagnostic tool used in functional medicine to uncover potential root causes of digestive and systemic health issues.

Comprehensive Stool Analysis

The GI-MAP is a comprehensive stool test offered by Diagnostic Solutions Laboratory Diagnostic Solutions Laboratory GI-MAP overview. This test is designed to provide a thorough analysis of the gastrointestinal tract, looking for various organisms and markers that can impact gut health. It moves beyond traditional stool tests that might only look for a few specific pathogens. Instead, the GI-MAP provides a broad overview of the microbial environment within the gut, making it a powerful tool for understanding gut dysbiosis and its potential effects on overall health.

Quantitative PCR Technology

A core feature of the GI-MAP test is its reliance on quantitative polymerase chain reaction (qPCR) technology. This advanced molecular method allows the test to detect parasites, bacteria, H. pylori, fungi, and more by targeting the specific DNA of the organisms tested. qPCR is highly sensitive and specific, meaning it can accurately identify microbial DNA even at low levels. This technology also quantifies the amount of DNA present, providing information on the abundance of each detected organism. This quantitative data is crucial for understanding the balance of the gut microbiome and identifying overgrowths or deficiencies that might contribute to symptoms.

Detection of Various Organisms

The GI-MAP test is designed to detect a wide range of microorganisms that can inhabit the gut. This includes various types of parasites, which can cause digestive upset and other symptoms. It also identifies different species of bacteria, including beneficial bacteria, commensal bacteria, and pathogenic bacteria. The test specifically looks for H. pylori, a bacterium known to cause ulcers and other gastric issues. Additionally, it screens for fungi, such as Candida, which can contribute to gut imbalances. By targeting the specific DNA of these organisms, the GI-MAP provides a detailed microbial assay, helping practitioners understand the complex ecosystem of the gut.

Turnaround Time and Interpretive Guide

Diagnostic Solutions Laboratory aims to deliver innovative, accurate, and clinically relevant diagnostic testing in a timely and cost-effective manner. The current turnaround time for GI-MAP results is typically 7–10 business days Research. Technology. Results. | Diagnostic Solutions Laboratory. This relatively quick turnaround helps practitioners and patients move forward with treatment plans efficiently. Furthermore, Diagnostic Solutions Laboratory provides an interpretive guide for the GI-MAP, which assists healthcare providers in understanding the detailed results. This guide helps in translating the complex microbial data into actionable clinical insights, enabling personalized interventions for optimizing gut health.

What's New with GI-MAP for 2025?

Diagnostic Solutions Laboratory is continuously innovating its GI-MAP test to provide even more comprehensive insights into gut health. For 2025, significant updates are being introduced that will expand the test's capabilities and enhance its clinical utility. These new additions aim to offer a deeper understanding of digestive function and metabolic processes within the gut.

Introduction of Bile Acids Testing

New for 2025, the GI-MAP will include testing for Bile Acids Diagnostic Solutions Laboratory GI-MAP overview. Bile acids are crucial for the digestion and absorption of fats and fat-soluble vitamins. They are produced in the liver, stored in the gallbladder, and released into the small intestine. Imbalances in bile acid metabolism can lead to digestive issues, nutrient malabsorption, and even influence the composition of the gut microbiome. By measuring bile acids, the GI-MAP will provide insights into liver and gallbladder function, as well as how these processes interact with gut health. This addition will help practitioners identify potential issues related to fat digestion and absorption, which can be a root cause of various gastrointestinal symptoms.

Inclusion of Short Chain Fatty Acids Testing

Also new for 2025, the GI-MAP will incorporate testing for Short Chain Fatty Acids (SCFAs). SCFAs, such as butyrate, acetate, and propionate, are produced when beneficial gut bacteria ferment dietary fiber in the colon. These fatty acids are vital for gut health, providing energy for colon cells, supporting gut barrier integrity, and exerting anti-inflammatory effects. They also play a role in systemic health, influencing immune function and metabolism. Imbalances in SCFA levels can indicate dysbiosis, insufficient fiber intake, or issues with bacterial fermentation. By assessing SCFAs, the GI-MAP will offer a clearer picture of the functional activity of the gut microbiome and its impact on the host's health. This allows for more targeted dietary and supplemental interventions to support a healthy gut environment.

Enhancing Clinical Relevance

The addition of Bile Acids and Short Chain Fatty Acids testing in 2025 aims to enhance the clinical relevance of the GI-MAP. These new markers provide a more functional assessment of gut health, moving beyond just identifying microorganisms to understanding their metabolic impact. By integrating these physiological markers, the test will offer a more complete story of the patient's gut function, allowing for more precise and personalized treatment strategies. Diagnostic Solutions Laboratory's mission is to deliver innovative, accurate, and clinically relevant diagnostic testing. These updates reflect their commitment to continually improving the diagnostic tools available to functional medicine practitioners, helping them optimize gut health for longevity and overall well-being. The GI-MAP's evolution underscores the dynamic nature of gut health research and the ongoing efforts to provide the most comprehensive insights possible.

Who Benefits from the DUTCH Test and GI-MAP?

Both the DUTCH Test and the GI-MAP are valuable tools for individuals seeking to understand and address the root causes of their health concerns. They are particularly beneficial for those experiencing chronic or complex symptoms that haven't been resolved by conventional approaches.

Individuals with Chronic Health Issues

Patients dealing with chronic health issues, especially those related to hormones or digestion, can greatly benefit from these tests. For instance, individuals struggling with persistent fatigue, unexplained weight changes, mood disturbances, or sleep problems might find answers through the DUTCH Test. These symptoms often point to underlying hormonal imbalances that traditional tests might miss. Similarly, people with ongoing digestive complaints like bloating, gas, constipation, diarrhea, or irritable bowel syndrome (IBS) can gain crucial insights from the GI-MAP. This test can identify specific pathogens, bacterial imbalances, or functional markers in the gut that contribute to these chronic conditions.

Those Seeking Root-Cause Solutions

Functional medicine takes a holistic approach, customizing treatment for each patient and using tests that get to the root of the problem. No two people are alike, and even family members with similar symptoms can have widely varied root causes. This is why diagnostic testing is essential to tailor health interventions that work for each individual. Both the DUTCH Test and GI-MAP align with this philosophy by providing detailed, individualized data. The DUTCH Test helps identify the root causes of hormone-related issues like fibroids, infertility, PCOS, low testosterone, or perimenopause. The GI-MAP helps uncover microbial imbalances, infections, or digestive inefficiencies that are at the core of gut-related health problems.

Practitioners in Functional Medicine

Functional medicine practitioners are primary users of these advanced diagnostic tests. They understand that hormonal shifts can significantly impact a patient's overall health and well-being. The DUTCH Test, with its detailed analysis of hormone balance and metabolites, helps these providers solve complex clinical questions. It provides a complete picture of patient hormone levels and metabolism. Similarly, the GI-MAP is an essential tool for practitioners focusing on gut health, helping them optimize gut health for longevity. By using these tests, practitioners can develop personalized treatment plans, moving beyond symptomatic relief to address the underlying physiological dysfunctions. They often integrate the results from these tests with other clinical information to create a comprehensive health strategy.

Individuals Optimizing Health and Wellness

Beyond addressing specific health problems, the DUTCH Test and GI-MAP are also used by individuals looking to optimize their overall health and wellness. For those simply looking to optimize hormone health, the DUTCH Test can deliver the insights needed to make informed lifestyle and dietary choices. Understanding one's hormone profile can help in proactively managing health and preventing future issues. The GI-MAP can also be used by health-conscious individuals to assess the state of their gut microbiome, even without overt symptoms. This proactive approach allows for early intervention to support a healthy gut environment, which is foundational for overall well-being, immune function, and mental health. These tests empower individuals to take a more active role in managing their health with precise, data-driven information.

Frequently Asked Questions

What conditions can the DUTCH Test help with?

The DUTCH Test can help provide insights into various hormone-related conditions. These include issues like fibroids, infertility, PCOS (Polycystic Ovary Syndrome), low testosterone, and perimenopause. It also assists in optimizing general hormone health by revealing the status of adrenal and sex hormones such as cortisol, melatonin, estrogen, progesterone, and testosterone production. The test has been available since 2012, offering a detailed analysis of hormone levels and their metabolites.

How do I collect samples for the DUTCH Test?

Collecting samples for the DUTCH Test is a non-invasive, at-home process. You will collect four to five dried urine samples over a 24-hour period. These samples are taken at specified times using filter paper provided in the test kit. It is important to pay careful attention to the timing of collection and how long to let the samples dry to ensure accurate results.

What makes the GI-MAP test unique?

The GI-MAP test is unique due to its use of quantitative polymerase chain reaction (qPCR) technology. This advanced method allows it to detect and quantify the specific DNA of various organisms, including parasites, bacteria, H. pylori, and fungi. This provides a comprehensive overview of the gut microbiome, going beyond traditional stool tests to offer detailed insights into microbial balance and potential dysbiosis. The test typically provides results within 7-10 business days.

Can the DUTCH Test be used for all genders?

Yes, the DUTCH Test can be used for all genders. It assesses important hormones such as cortisol, melatonin, estrogen, progesterone, and testosterone production, which are relevant to the health and well-being of individuals regardless of their gender. The comprehensive nature of the test helps identify hormone imbalances that can affect anyone.

Who typically uses the DUTCH Test and GI-MAP?

The DUTCH Test and GI-MAP are typically used by functional medicine practitioners and individuals seeking root-cause solutions for their health concerns. These tests are popular among those looking for detailed insights into hormone balance and gut health beyond what traditional diagnostics offer. Practitioners use these tests to develop personalized treatment plans for conditions ranging from hormonal imbalances like PCOS to digestive issues like IBS.