Inclusion Criteria:
* Provision of signed and dated informed consent form
* Stated willingness to comply with all study procedures and availability for the duration of the study
* Any person aged 18-80 years of age, inclusive at the time of signing the consent
* In good general health as evidenced by medical history
* Ability to travel to donation facility on a weekly basis
* Residence within 5 miles of Stanford Campus
* For females of reproductive potential: use of highly effective contraception for at least 1 month prior to screening and agreement to use such a method during study participation
* Capable of providing signed informed consent.
Exclusion Criteria:
* Inflammatory bowel disease
* Enteric infections
* Previous infection with Clostridium difficile
* History of gastrointestinal surgery: Participants with gastrointestinal surgeries below the pylorus will be excluded from this protocol, including participants with a history of colectomy, segmental colonic resection, and small bowel resections.
* Documented severe gastroparesis
* Active intestinal obstruction
* Dysphagia (oropharyngeal, esophageal, functional or neuromuscular)
* History or current malignancy diagnosis
* History of recurrent aspiration episodes
* Any conditions associated with a high risk of bleeding, including but not limited to coagulopathy/bleeding disorder, severe liver disease, active or recent GI bleeding, or recent abdominal or other GI surgery
* Active diagnosis of major depressive disorder
* Active diagnosis of major anxiety disorder
* Severe immunodeficiency, inherited or acquired (e.g., Human immunodeficiency virus, active chemotherapy or immunosuppressive medications \[including steroids, biologic therapy, or bone marrow suppressive agents\], or radiation therapy)
* BMI of less than 18 or BMI greater than 30
* Record of eating disorders
* Active use of GLP-1 inhibitors
* Diagnosis of Human immunodeficiency virus infection; Hepatitis A, B, C \& E; Epstein Bar Virus; parasitic infections; Syphilis
* Pregnancy \& lactation
* Active drug, or alcohol use disorder
* Tobacco, marijuana and e-cigarette use
* Any other significant medical condition that could confound or interfere with evaluation of safety or tolerability or prevent compliance with the study protocol at the discretion of the Investigator
Prior/concomitant therapy
* Active antibiotic use
* Active treatment with high levels of immunosuppressive therapies (active chemotherapy or immunosuppressive medications \[including steroids, biologic therapy, or bone marrow suppressive agent\], or radiation therapy)
* Simultaneous participation in another interventional clinical trial
Other exclusion criteria
-Inability to comply with research requirements
