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Testing & Lab Work

In partnership with Biorna Quantics, clients of Holistic Nutrition by Sarah Clark have access to the following in-home Digestive, Gastro-Intestinal, and Hormone Testing: 


GI Map

The most comprehensive DNA stool analysis in the world. This test picks up a wide range of parasites and other protozoa, viruses and fungi, inflammation and protein antigens in addition to H. Pylori and other bacterial infections. GI Map also pinpoints bacteria related to auto-immune symptoms allowing for practitioners to support a variety of conditions including auto-immune diseases, psoriasis, eczema, thyroid conditions and many others.



Small Intestinal Bacterial Overgrowth (SIBO) occurs when bacteria enters your normally sterile small intestine and begins to colonize. Studies have indicated that potentially up to 80% of patients with IBS may in fact have SIBO. Common symptoms and reasons to test for SIBO include nausea, flatulence, diarrhea, constipation, malnutrition, Irritable Bowel Syndrome (IBS), Irritable Bowel Disease (IBD), Leaky Gut Syndrome, Chronic Fatigue Syndrome, Acid Reflux, Rosacea, Restless Leg Syndrome (RLS), Fibromyalgia, Gastroeseophageal Reflux Disease (GERD), Celiac Disease & Diverticulitis. 


Ultimate Hormone Test 

Tests a broad range of sex, stress and metabolic hormones: Estradiol, Progesterone, Testosterone, DHEA-S, Sex Hormone Binding Globulin (SHBG), Cortisol (4 times/periods one-day), Thyroid Stimulating Hormone (TSH), Free Thyroxine (T4), Free Triiodothyronine (T3), and Thyroid Peroxidase Antibody (TPO)

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