Oral Supplementation With 1 mg of KGA-10 Daily (a Novel Environmentally-derived Mycolicibacterium) for Stress, Sleep, and Inflammation

Inclusion Criteria: * Healthy individuals between the ages of 18 and 65 * Able to provide informed consent * Willing to take a daily supplement * Willing to complete at-home finger prick - blood spot samples on three occasions * English speaking Exclusion Criteria: * Inability to adequately respond to questions regarding the informed consent procedure * Currently involved in the criminal justice system as a prisoner or ward of the state * Non-English speaking * Current (past month) alcohol or substance abuse or dependence * Lifetime history of bipolar disorder or psychosis * Receiving intravenous, intramuscular, or oral antibiotics within the last month * Receiving medications that interfere with gut motility (opiates, loperamide, stool softeners) * Presence of central venous catheters (CVCs) * Gastrointestinal (GI) barriers as identified by the 2-week run-in period as determined by the study team (e.g., daily GI discomfort with frequent diarrhea prior to supplementation) * Participation in conflicting interventional research protocol * Vital signs outside of acceptable range (i.e., blood pressure \>160/100, oral temperature \>100°F, pulse \>100) * Use of any of the following drugs within the last 6 months: systemic antibiotics, antifungals, antivirals or antiparasitics (intravenous, intramuscular, or oral); oral, intravenous, intramuscular, nasal or inhaled corticosteroids; cytokines or cytokine inhibitors; methotrexate or immunosuppressive cytotoxic agents * Acute disease at the time of enrollment (defer sampling until the participant recovers-acute disease is defined as the presence of a moderate or severe illness with or without fever) * Chronic, clinically significant (unresolved, requiring ongoing medical management or medication) pulmonary, cardiovascular, gastrointestinal, hepatic or renal functional abnormality * History of cancer except for squamous or basal cell carcinomas of the skin that have been medically managed by local excision * Positive test for human immunodeficiency virus (HIV), Hepatitis B virus, or Hepatitis C virus * Any confirmed or suspected condition/state of immunosuppression or immunodeficiency (primary or acquired) including HIV infection * Major surgery of the GI tract, with the exception of cholecystectomy and appendectomy, in the past five years. Any major bowel resection at any time * Regular urinary incontinence necessitating use of incontinence protection garments * Female who is pregnant or lactating * Treatment for or suspicion of ever having had toxic shock syndrome * Those receiving immunosuppressive drugs or treatment including antineoplastic therapy, post-transplantation immunosuppressive therapy, and/or radiation therapy