Adult HMO Supplementation and the Gut Microbiome

The investigators will enroll 24 healthy, adult volunteers into this double-blinded, randomized, placebo-controlled trial. Upon confirmation of eligibility and documentation of informed consent, the participants will be randomized to either SuperHMO (Layer Origin, 53% 2'FL, 15% LNT, 14%LNnT, 12% 6'SL, 6% 3'SL) prebiotic formulation at a dosage of (4.2 g/day) or placebo (maltodextrin, 4.2 g/day), self-administered at home and taken as a liquid solution in a beverage of choice by mouth once daily for 30 days. Participants will take a baseline survey at the beginning of the study and an exit survey at the end of the study assessing their current health, health history, diet, current and past supplement and medication use, and any GI symptoms or bowel irregularities. Participants will additionally take a baseline microbiome sample before beginning the daily regimen of taking the supplement or placebo for 30 days. At the end of the study, participants will take another microbiome sample and an exit survey to report changes to gut health, overall health, diet, and any adverse reactions. Gut microbiome outcomes will be analyzed both intra-individually, as a before and after comparison, and inter-individually to compare intervention and control groups.

Inclusion criteria

• Participants are between the ages of 18 and 40.

Exclusion criteria

• Participants cannot have taken prebiotic or probiotic supplements within 6 months of starting study. This includes prebiotic or probiotic powder or supplements with prebiotic or probiotic addition or multivitamin with probiotic addition. This does not include food with live probiotics in it like yogurt or kefir.

• Participants must not be pregnant or breastfeeding or trying to conceive within the study period.
• Participants must be residents of the United States with US postal service.
• Participants cannot have the following existing health conditions:

• Pre-existing gut conditions (IBD, Celiac's disease, Crohn's disease, SIBO)
• Immune or auto-immune conditions (Type 1 Diabetes, human immunodeficiency virus (HIV))
• Participants cannot be lactose intolerant or have an allergy to dairy products.
• Participants are excluded if they have received results from an at home microbiome stool test in the past 6 months. This does not include clinical workup such as culture or pathogen testing.
• Participants must agree not to take another prebiotic or probiotic supplement or an at-home test over the study period.
• Participants must have no known major dietary changes upcoming.