A Non-Interventional Pilot Study to Explore the Role of Gut Flora in Alzheimer's Disease

Inclusion Criteria: 1. Signed informed consent, demonstrating that the patient understands the procedures required for the study and the purpose of the study 2. Male or female patients age 18 and older 3. Diagnosis of Alzheimer's disease or dementia by a physician 4. Mini Mental Status Exam score less than 26 Exclusion Criteria: 1. Refusal to sign informed consent form 2. Treatment with antibiotics within 2 weeks prior to screening 3. Treatment with probiotics within 2 weeks prior to screening 4. History of bariatric surgery, total colectomy with ileorectal anastomosis or proctocolectomy. 5. Postoperative stoma, ostomy, or ileoanal pouch 6. Participation in any experimental drug protocol within the past 12 weeks 7. Treatment with total parenteral nutrition 8. Any clinically significant evidence of disease that could interfere with the subject's ability to enter the trial 9. Inability to adequately communicate with the investigator or their respective designee and/or comply with the requirements of the entire study