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Supplement Guide Disclaimer
The information presented in Supplement Guide is for informational purposes only and should not be considered medical advice. Nutritional recommendations are based on established guidelines for people of average health and on associations between vitamins, minerals, and herbs with health conditions from published scientific studies (human, animal, or in vitro), clinical experience, or traditional usage. These associations may not be true for all individuals and are not based on specific product brands or formulations. Nutritional and herbal products may vary widely in ingredient purity, concentration, and combinations, which may affect people differently. Consult your doctor, pharmacist, or other professional for any health problem and before adding supplements to your self-care practices or discontinuing any prescribed medications. It is important not to make any changes in your self-care, including taking supplements, before or after a surgery without your doctor's express recommendation. In addition, please consult with your healthcare practitioner to make sure that your cumulative daily intake of copper, selenium, zinc, vitamin B6, folic acid, or any other nutrient, does not exceed established, tolerable upper intake levels.
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- Lab Testing
- Digestion
Gut Check: Test Your Digestive Health


What’s wrong with my digestive system?
Blood tests can measure levels of pancreatic enzymes that help you digest food, detect bowel syndrome conditions and identify nutritional deficiencies. Stool testing can diagnose digestive problems like parasitic infections, H. pylori, even cancer. Breath and saliva testing can show whether digestive bacteria have overgrown your small intestine. Digestive health concerns? These tests can help.
What do digestive lab tests look for?
- Get to the bottom of digestive problems like diarrhea
- Find out if you're suffering from enzyme deficiency
- Test for metabolism, lactose intolerance and IBS
- Determine your risk for Crohn's or Celiac disease
- Uncover dangerous bacterial or parasitic infections
- Choose from saliva, breath, blood or fecal swab tests
Lab
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How Life Extension lab testing works
Wellness
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Digestive Health Quiz
Get a gut check on your gut health. Take this quiz for custom recommendations.
Digestive Health Laboratory Tests
Some of the lab tests for digestive issues are blood tests—but not all of them. There are fecal tests, urine tests and even minimally invasive saliva cheek swabs and breath testing. Check out the tests below, and figure out what’s bugging your gut!
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This home breath kit measures gases that can indicate the presence of small intestinal bacterial overgrowth (SIBO). The lactulose breath test is one of two tests that measure hydrogen and/or methane gases.
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The GI360™ Profile provides in-depth insight into microbiome diversity, dysbiosis, and markers of intestinal health, with easy at-a-glance visual interpretation of results.
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Gastrointestinal complaints are common, but many of us are unsure of the causes. This fecal panel assesses your gut health in the areas of digestion/absorption, microbiome, inflammation, immune response, intestinal health markers, pathogenic bacteria, yeast, parasites and more.
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Helicobacter pylori (H. pylori) is a bacterium that can inhabit various areas of the stomach and small intestine. This test measures for IgG antibodies to H. pylori, which are strongly associated with chronic gastritis and peptic ulcer disease.
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If you're concerned about pancreatitis because of your gastrointestinal symptoms, you or your doctor may want to assess your levels of lipase, a digestive enzyme made by the pancreas that helps break down dietary fat.
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If you're concerned about pancreatitis because you've been having gastrointestinal symptoms, you or your doctor may want to check your levels of amylase, a digestive enzyme made by the pancreas that helps breaks down starchy foods.
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Celiac disease is an immune-mediated reaction to gluten, resulting in inflammation and other medical symptoms. This panel includes tests for deamidated gliadin IgA, tissue transglutaminase IgA and serum IgA level.
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Blood testing for Candida (“yeast” infection) IgG, IgM, and IgA antibodies indicate past or present infection with this common fungus.
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This test detects small traces of blood in fecal samples that can only be dectected with certain chemicals. Results may need to be repeated or followed up with diagnostic procedures to determine the causes of this occult blood.
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Inflammatory bowel disease (IBD) is a chronic disorder of the lower gastrointestinal tract. This test helps differentiate between types of IBD, including Crohn's disease, ulcerative colitis and indeterminate colitis.
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This simple cheek swab test determines the presence of genetic markers of susceptibility to celiac disease, an immune disorder that results in inflammation following the consumption of foods that contain gluten.
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Good starting point and best value for evaluating microbiome-related gastrointestinal concerns and identifying the presence of common pathogenic microorganisms.
Digestive Health Quiz
Get a gut check on your gut health. Take this quiz for custom recommendations.

Contact Wellness Specialist
1-800-226-2370
8 AM - 1 AM (ET) Weekdays
9 AM - 1 AM (ET) Weekends

Contact Wellness Specialist
1-800-226-2370
8 AM - 1 AM (ET) Weekdays
9 AM - 1 AM (ET) Weekends
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