SIBO (Small Intestinal Bacteria Overgrowth)
What is a SIBO Test?
SIBO Breath tests involve consuming a lactulose or glucose drink. Afterward, you collect a breath sample to measure the production of hydrogen and methane gases by bacteria in your small intestine. These are produced through fermentation of the lactulose or glucose by your gut bacteria. Lactulose is a synthetic sugar that humans cannot absorb. This enables lactulose to travel the entire length of the small intestine undigested. It helps us to detect SIBO that only occurs in the furthest portion of your small intestine. Humans quickly absorb glucose, so it doesn’t reach the end of the small intestine. Read more for signs you need this test and what it shows.
Digestion – Comprehensive Microbiology, Comprehensive Parasitology, GIMap or GI360 Stool Tests
What Stool Tests Check:
These are a variety of stool tests that we use to check all the factors that may impact your digestion. Your naturopath will discuss which one would be most appropriate for you. Read more for signs you need this test and what it shows.
Zonulin Test
What the Zonulin Test Checks:
The test looks at your blood for levels of zonulin. Zonulin is a protein that regulates the permeability of your digestive tract by affecting tight junctions. Read more for signs you need this test and what it shows.
Food Allergies/Sensitivities/Intolerance
What is Food Sensitivity Testing?
Food allergy blood testing is looking in your blood for antibodies your immune system makes to attack food. When you make these antibodies, they bind to the triggering food, creating an antibody-antigen complex. These complexes then deposit in your body and trigger inflammation and various symptoms. Read more for signs you need this test and what it shows.
Female Hormone Testing
What are Female Hormone Blood Tests?
The test is a blood test to check your hormone levels. The specific hormones tested will depend on the nature of your symptoms. The tests may include estradiol, progesterone, DHEAs, total testosterone, androstenedione, prolactin, DHT, LH, FSH, cortisol, TSH, free T3, free T4, anti-thyroid antibodies, and more. Read more for signs you need this test
Male Hormone Testing
What are Male Hormone Tests:
The test is a blood test to check your hormone levels. The specific hormones tested will depend on the nature of your symptoms. The tests may include estradiol, progesterone, DHEAs, total testosterone, androstenedione, prolactin, DHT, LH, FSH, cortisol, TSH, free T3, free T4, anti-thyroid antibodies, and more. Read more for signs you need this test
Tests for Adrenal Fatigue or HPA axis dysfunction
What is an Adrenal Fatigue Test or HPA axis dysfunction test?
An adrenal function test or adrenal stress test analyzes four saliva samples that you collect over a 24-hour period for four cortisol levels and one DHEAs level. Read more for signs that you may need this test.
Thyroid Tests
What are thyroid blood tests?
Thyroid blood tests help to determine if your thyroid is working correctly, if you can convert thyroid hormone (T4) into its active form (T3), whether you can use T3 correctly and whether you have an autoimmune thyroid condition. Read more for signs that you need thyroid testing
MTHFR Testing
How to access MTHFR testing in Ontario:
Naturopathic doctors in Ontario are not allowed to order genetic testing of any kind, including MTHFR testing. Here’s how to access this information on your own:
Order genetic testing yourself through Ancestry.com (no affiliation)
After your results return, contact Ancestry.com and ask them for your raw data. Input that information into the Found My Fitness app, Sterling’s app, or Genetic Genie for MTHFR interpretation. Book an appointment for guidance on how to manage the results of your test.
How to Get Lab Tests Through a Naturopath
Book an appointment here to determine which tests are most appropriate for you. Don’t see a test that you are interested in? Odds are that we can access it for you. Just email us at Maria@ForcesofNature.ca or call the office at 416-481-0222, and we’ll get back to you with the information.
By Dr. Pamela Frank, Naturopathic Doctor, updated March 20, 2025