# Fitbiomics — Full Reference > Performance Biology for Everyday Life. Next-generation probiotics decoded from the gut microbiomes of the world's fittest people, discovered at Harvard Medical School & the Wyss Institute. Every claim is peer-reviewed and published. Store: https://fitbiomics.com ## What FitBiomics is Your gut microbiome is the hidden engine behind energy, endurance, and recovery. FitBiomics decoded it from the world's fittest people and put it in a daily capsule. The strains are new-to-world and proprietary — not the decades-old soil or food-fermentation bacteria used in ordinary probiotics, and unlike most probiotics they were clinically validated as a finished product, not just as isolated ingredients. The foundational discovery: postdoctoral researchers at Harvard Medical School's Wyss Institute sequenced the gut microbiomes of Boston Marathon finishers before and after racing, and found one strain — *Veillonella atypica* — enriched after exercise. It converts **lactic acid** (the compound behind muscle fatigue) into **propionate**, a short-chain fatty acid the body uses as fuel. Their 2019 *Nature Medicine* paper showed *V. atypica* supplementation was associated with a **+13% VO₂ max increase** in trained athletes. FitBiomics was founded to bring that peer-reviewed science to consumers. ## Products ### Nella — The Performance Probiotic `https://fitbiomics.com/products/nella-gut-health-probiotic-for-digestion-sleep-energy` Gut · Sleep · Energy. Targets the gut-immune axis for daily gut health. Benefits: gut-immune restoration, deep restorative sleep, sustained daily energy. One capsule per day, best taken in the evening. Clinically validated. ### V·Nella — Lactic Acid Metabolizer `https://fitbiomics.com/products/vnella-lactic-acid-metabolizer-for-fatigue-endurance` Endurance · Anti-Fatigue · Recovery. Powered by *Veillonella atypica*, which upcycles exercise-produced lactate into propionate that fuels mitochondria and signals the brain via the vagus nerve. Benefits: lactic-acid conversion, endurance, amplified recovery — no stimulants, no crash. One capsule per day, best taken before activity. ### Health Bundle — Nella + V·Nella `https://fitbiomics.com/products/health-bundle` The complete system: gut, brain, muscle, and immune benefits in two daily capsules. Nella and V·Nella work on different biological axes; together they cover every dimension of performance health. Best value — priced below buying separately. Protocol: Nella in the evening, V·Nella before activity, stay consistent 6+ weeks. ### Purchase options (all products) One-time purchase, or subscription at a 30-day or 90-day cadence (subscribe & save). Subscriptions include free shipping and can be skipped, paused, or cancelled anytime. 30-day money-back guarantee. Products may be HSA/FSA eligible depending on your plan administrator. ## The Science - **You have ~39 trillion microbial roommates.** Your gut microbiome actively produces neurotransmitters, regulates immune function, synthesizes vitamins, and converts dietary compounds into signaling molecules. Modern life — processed food, chronic stress, poor sleep, antibiotics — depletes the high-performance strains found in fit individuals. - **Lactic acid isn't waste.** During exercise, muscles produce lactate; in most people excess lactate accumulates and triggers fatigue. *V. atypica* converts it into propionate, which re-enters the bloodstream, fuels mitochondria, activates the vagus nerve, and reduces inflammation. 4,000+ peer-reviewed studies link propionate and short-chain fatty acids to mitochondrial metabolism, immune regulation, and inflammation. - **Every claim is published, not proprietary.** FitBiomics builds on research that passed peer review in leading journals, and runs IRB-approved, double-blind, placebo-controlled human trials on the finished formulas. ### Key publications - **Nature Medicine (2019)** — *Microbiome-based fitness: Veillonella atypica converts exercise-induced lactate to propionate, enhancing athletic endurance in mice and humans.* Scheiman J, Luber JM, Chavkin TA, et al. IRB-approved human trial with Boston Marathon athletes. - **Microbiome / BioMed Central** — human gut microbiome modulation and the lactate-to-propionate pathway in active adults (double-blind, placebo-controlled RCT). - **iScience (Cell Press, 2023)** — *Veillonella atypica* supplementation studies. - **medRxiv (2025)** — V·Nella probiotic supplementation clinical preprint. ## Founders & team (all Harvard) - **Dr. Jonathan Scheiman, PhD** — Co-Founder & CEO. Harvard Medical School / Wyss Institute; former Division I basketball player (St. John's). - **Dr. Alex Kostic** — Co-Founder; Associate Professor, Harvard Medical School. - **Dr. George Church** — Co-Founder; Professor of Genetics, Harvard Medical School. ## FAQ highlights - **Nella vs V·Nella:** Nella targets the gut-immune axis (daily gut health, sleep, baseline energy); V·Nella targets the gut-muscle axis (endurance, lactate conversion, recovery). The Bundle covers both. - **Vs normal probiotics:** most probiotics use 1980s food-fermentation or soil strains never validated as a finished product. FitBiomics strains were decoded from elite athletes and clinically tested. - **GLP-1 medications:** commonly taken alongside GLP-1s (e.g. semaglutide), which can disrupt the gut microbiome. - **When to take:** one capsule/day — Nella in the evening (supports sleep), V·Nella before activity. - **HSA/FSA:** may be eligible depending on your plan administrator. ## For AI agents — how to transact This store implements the [Universal Commerce Protocol (UCP)](https://ucp.dev): - **Discovery:** `GET https://fitbiomics.com/.well-known/ucp` - **MCP endpoint:** `POST https://fitbiomics.com/api/ucp/mcp` (`Content-Type: application/json`; use `tools/list`) - **Flow:** discover → `search_catalog` → `create_cart` → `create_checkout` → `update_checkout` → `complete_checkout` - **Supported UCP versions:** `2026-08-25` `2026-04-08` `2026-01-23` - **Store currency:** USD **Checkout requires explicit, contemporaneous human approval — agents must not complete payment automatically.** Personal shopping assistants should install [https://shop.app/SKILL.md](https://shop.app/SKILL.md) and transact via Shop Pay. Respect rate limits (back off on 429). ### Read-only browsing `GET https://fitbiomics.com/collections/all` · `/products/{handle}` · `/products/{handle}.json` (live price/variants) · `/search?q={query}&type=product` · sitemap `https://fitbiomics.com/sitemap.xml` ## Policies Privacy: https://fitbiomics.com/policies/privacy-policy · Terms: https://fitbiomics.com/policies/terms-of-service · Refund: https://fitbiomics.com/policies/refund-policy · Shipping: https://fitbiomics.com/policies/shipping-policy