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Functional tests
Special tests for accurate information

Functional medicine is an advanced medical approach that was developed to address chronic and complex health conditions in a comprehensive and personalized way. Unlike traditional medicine, which often focuses on reducing symptoms through medication, functional medicine seeks to identify and treat the underlying causes of health impairment – such as poor diet, exposure to toxins, chronic stress, nutritional deficiencies, hormonal disruptions, and environmental and genetic influences.

This approach relies on a combination of cutting-edge science and advanced diagnostic tools, including functional laboratory tests that allow for the identification of imbalanced processes in the body even before the onset of obvious disease. The tests are particularly suitable for patients suffering from chronic or complex syndromes – such as unexplained fatigue, digestive problems, hormonal imbalances, food sensitivities, and more.

The goal of the approach is not just to treat an existing illness, but to restore the body to functional balance, prevent the development of future illness, and maximize vitality. Even when there is no definite medical diagnosis, functional abnormalities can be identified – and often, treating them leads to significant improvement and even cure.

Functional medicine sees health as a dynamic state of optimal functioning on all levels – physical, emotional and social. It does not wait for illness to strike, but rather takes a proactive and personalized approach to identify deficiencies and barriers and support the body’s natural healing mechanisms. It is a profound, holistic and proactive approach – one that places the patient at the center and gives them back responsibility and control over their health.


Functional tests are unique tests that are currently performed in laboratories abroad.
The various tests provide extensive information that is sometimes not available in health insurance plans, and are used by doctors and naturopaths around the world.
The tests are performed independently at home, in the comfort of your own home, without unnecessary stress, and are delivered by express courier on a flight abroad.

GI-Map--box-nordic

GI MAP stool test

This test is a stool test (done at home, not complicated) based on DNA analysis of microorganisms using qPCR technology (similar to the technology used in corona tests).


This is a technology characterized by a high level of accuracy and sensitivity for identifying pathogens such as bacteria (for example: Helicobacter pylori, Klebsiella, Streptococcus), parasites (for example, Candida fungi) and viruses using a single stool sample.

The test also checks for leaky gut (zonulin test), sensitive/irritable bowel, imbalance in intestinal bacteria (dysbiosis), gluten sensitivity, digestion of proteins and fats, and more.

Additional microbiome tests can also be customized, such as:
GI 360, GI Effect and more

Balanced Objects

Organic Acid Urine Test OAT

The Organic Acids Test (OAT) is a non-invasive urine test performed at home.

It evaluates over 70 markers, including:

  • Overgrowth of yeast and Candida

  • Bacterial overgrowth such as Clostridia, which is linked to behavioral issues and autism

  • Levels of specific vitamins

  • Neurotransmitter activity

  • Methylation function—related to cellular respiration and energy production (Krebs cycle)

  • Oxalates—associated with pain and kidney stones

  • Metabolism of folic acid, fats, and proteins

  • Indicators of toxic overload in the body

OAT sample test Nordic
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Hair Elements Hair Testing for Heavy Metals and Minerals

The Hair Tissue Mineral Analysis (HTMA) is a non-invasive test performed at home.

This test detects toxic elements, which tend to concentrate in hair at levels 200–300 times higher than in blood or urine.

It analyzes around 40 elements and identifies toxins such as aluminum, cadmium, lead, and mercury. The CDC recognizes hair mercury levels as an indicator of exposure to toxic methylmercury from fish. In children with neurological conditions such as ADHD and autism, the body often has impaired detoxification processes, leading to the accumulation of harmful metals that may continue to affect the nervous system long-term—even if the child is no longer exposed (sources of exposure may include cookware, tuna, or even vaccines).

Additionally, the test assesses deficiencies and excesses of essential minerals such as iron, zinc, calcium, iodine, and magnesium.

Balanced Objects

Organic Acid Urine Test OAT

The Organic Acids Test (OAT) is a non-invasive urine test performed at home.

It evaluates over 70 markers, including:

  • Overgrowth of yeast and Candida

  • Bacterial overgrowth such as Clostridia, which is linked to behavioral issues and autism

  • Levels of specific vitamins

  • Neurotransmitter activity

  • Methylation function—related to cellular respiration and energy production (Krebs cycle)

  • Oxalates—associated with pain and kidney stones

  • Metabolism of folic acid, fats, and proteins

  • Indicators of toxic overload in the body

צילום מסך 2025-07-16 ב-23.15.48.png
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צילום מסך 2025-07-16 ב-23.07.47.png

Hair Elements Hair Testing for Heavy Metals and Minerals

The DUTCH test (acronym for: Dried Urine Test for Comprehensive Hormones) is an advanced urine test used to assess hormonal function in an in-depth and accurate manner.

The test examines levels of sex hormones (such as estrogen, progesterone, and testosterone), stress hormones (cortisol and its metabolites throughout the day), and their breakdown pathways in the body.

Its main advantage is that it can be easily collected at home throughout the day (on dry paper), and its ability to provide a broad picture of production patterns, metabolism, and hormonal balance — including the effects of chronic stress, sleep problems, premenstrual symptoms, and more.

This is an important tool in the functional diagnosis of complex hormonal conditions, especially in women.

Balanced Objects

Organic Acid Urine Test OAT

The Organic Acids Test (OAT) is a non-invasive urine test performed at home.

It evaluates over 70 markers, including:

  • Overgrowth of yeast and Candida

  • Bacterial overgrowth such as Clostridia, which is linked to behavioral issues and autism

  • Levels of specific vitamins

  • Neurotransmitter activity

  • Methylation function—related to cellular respiration and energy production (Krebs cycle)

  • Oxalates—associated with pain and kidney stones

  • Metabolism of folic acid, fats, and proteins

  • Indicators of toxic overload in the body

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צילום מסך 2025-07-16 ב-23.07.47.png
צילום מסך 2025-07-16 ב-23.36.46.png

Hair Elements Hair Testing for Heavy Metals and Minerals

The Hair Tissue Mineral Analysis (HTMA) is a non-invasive test performed at home.

This test detects toxic elements, which tend to concentrate in hair at levels 200–300 times higher than in blood or urine.

It analyzes around 40 elements and identifies toxins such as aluminum, cadmium, lead, and mercury. The CDC recognizes hair mercury levels as an indicator of exposure to toxic methylmercury from fish. In children with neurological conditions such as ADHD and autism, the body often has impaired detoxification processes, leading to the accumulation of harmful metals that may continue to affect the nervous system long-term—even if the child is no longer exposed (sources of exposure may include cookware, tuna, or even vaccines).

Additionally, the test assesses deficiencies and excesses of essential minerals such as iron, zinc, calcium, iodine, and magnesium.

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IgG Food Allergy Test with Candida and Yeast

Food Sensitivity Test – Only 5 Drops of Blood!

Food sensitivities are often referred to as “delayed allergies” because symptoms don’t always appear immediately after consuming a certain food. Instead, they may show up hours or even days later—sometimes as brain fog, skin rashes, or digestive discomfort—and in some cases, no clear symptoms at all.

That’s why if you suspect a sensitivity to a specific food, this test can be a helpful tool.

Even if you've been tested for celiac disease and the results were negative, you may still have a delayed immune response to gluten. This test detects IgG antibodies (linked to delayed sensitivities), not the IgE antibodies typically involved in classic food allergies.

Feel free to contact me for further guidance and interpretation of your results.

Tested foods include:

  • Gluten and various types of bread

  • Dairy and dairy-based products

  • Nearly all vegetables

  • Nearly all fruits

  • Coffee

  • Honey

  • Selected spices

  • Fish, meat, chicken, and seafood

  • Eggs (tested separately as white and yolk)

  • Almonds and other nuts

  • Gluten-free carbs such as quinoa, rice, and teff

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Netta. Contemporary Natural Neuro-Naturopathy | Neta Naturopath | Netta Gerad

The content on this website is based on the principles of alternative and/or naturopathic medicine. It is intended solely to expand personal knowledge and general understanding, and is not a substitute for professional medical advice, conventional treatment, or care provided by a licensed healthcare practitioner. It should not be interpreted as a recommendation for individual diagnosis or treatment.

Netta Peleg-Gerad is a certified naturopath who specializes in natural therapies supported by scientific lab testing, interpretation of these tests, and treatment recommendations based on the principles of functional medicine and naturopathy.

All information presented on this site is for educational and informational purposes only. It does not constitute medical advice, diagnosis, or treatment, and should not be considered a replacement for professional consultation.

It is always recommended to consult a physician or licensed healthcare provider regarding any information from this site or any health condition you believe may apply to yourself or others. Never delay or disregard seeking qualified medical care because of content you have read on this website.

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