Clinical Research Directory

Inclusion criteria: * 25 - 75 years old * Male or female * BMI 18.5 - 34.9 kg/m2 * Weight ≥ 110 pounds * Computer, tablet or smart phone with cellular data/Wi-Fi to establish video call communication Exclusion criteria: * Adults unable to consent * Prisoners * Non-English speaking\* * BMI ≥ 35 kg/m2 * Indications of substance or alcohol abuse within the last 3 years * Cancer of the GI tract, previous GI surgery (except appendectomy) or GI stoma * History of difficult blood draws * Diarrhea, defined as 3 or more loose or liquid stools/day, within the last 3 months or antibiotic intake within the last 3 months * Currently participating in a clinical or dietary intervention study * Non-English speaking volunteers will be excluded for safety reasons, as we do not have staff that can adequately provide interpretation services that can explain and answer questions with regard to study procedures.