
Nutritional Genomics Institute
Nutritional Genomics Institute

Collection Instructions
The day before test:
Eat normal diet, do not over hydrate (no more than 6-8 glasses of water);avoid over-consuming any single food, extreme diets, or engaging in a rigorous activity (i.e. marathon); Avoid seafood.
Foods to avoid before 5 days before collection:
Artificial sweeteners, MSG, seafood, bananas, pineapples, kiwi, plums, avocados, walnuts, pecans
URINE COLLECTION:
Must be first morning collection ​using a BRAND-NEW PLASTIC CUP (ex. Solo Cup) that you need to purchase prior to the collection.
After collection, place urine in the freezer, for at least 2 hours prior to the blood draw.
*Female patients should not collect during menstrual period.
BLOOD COLLECTION:
Must collect after an overnight fast (at least 8 hours). NGI staff will help you schedule with a certified phlebotomist.
Makes sure to label all tubes. Please make sure that the physician’s name on the requisition matches the name you place on the collection tubes. Note: this may be different from your primary practitioner at NGI
What to do About Supplements or Medications?
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If you have already started taking your supplements or medications prescribed by NGI, please CONTINUE taking them. DO NOT STOP taking any medication/supplements NOT prescribed by NGI.
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If you have not started your supplement program, please avoid the following for at least 2 weeks unless directed by your provider:
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Valproic acid, Acetaminophen, Berberine HCl, Antibiotics, antifungals, probiotics, digestive enzymes, acid blocking medications, Amphetamines, centrally acting medications, antidepressants, Anti-Parkinsonian medications, HMG-CoA-reductase inhibitors (statins) and red yeast rice, N-Acetyl Cysteine (NAC), Oral contraceptives, estrogen therapy, Quercetin, Steroids, Diuretics, Fibrates, Kreb's cycle and amino chelated supplements (i.e. citrate, malate, succinate, glycinate, threonate, and orotate forms of supplements [magnesium citrate], alpha ketoglutarate, and others), Provocation/chelating agents (i.e. DMPS, DMSA, EDTA, etc.), Vitamin C


Diabetic Patients and Special Populations
Urine glucose is a direct interferent to the lipid peroxides assay. Patients with uncontrolled diabetes and elevated urine glucose may receive a result of 'not reportable, NR' for lipid peroxides. Sodium-Glucose Cotransporter-2 (SGLT2) Inhibitors lower blood sugar by disposing of excess glucose via urine.
This test is also not designed for pediatric patients under the age of 2, pregnant patients or those with abnormal creatinine levels. Those using urinary catheters, please see the website for further instructions
