Thorne Complete Biotic

Your gut does more than digest food. For endurance athletes, it's where nutrition is absorbed, immune function is regulated, and recovery begins. Hard training puts real stress on the GI tract, and when your gut isn't functioning well, you feel it everywhere. Your energy, your immunity, and your ability to tolerate the high-carb fueling that racing and long training days demand...it's all compromised.

Thorne Complete Biotic gives you a full-spectrum approach to gut health in a single, no-water-needed stick pack — a 3-in-1 formula combining a prebiotic, a probiotic, and a postbiotic to support your microbiome from every angle.

A Smarter Prebiotic That Clears the Way – Complete Biotic uses PreforPro® — a clinically studied bacteriophage (a type of beneficial organism that specifically targets undesirable bacteria in the gut). By clearing out less beneficial microbes, PreforPro® creates more space and a more favorable environment for good bacteria to thrive. It works at a fraction of the dose of traditional fiber-based prebiotics, with no bloating or digestive discomfort.

A Resilient Probiotic That Survives – Bacillus subtilis (DE111®) is a spore-forming probiotic strain, meaning it's naturally armored to survive stomach acid and arrive intact in your intestines, where it supports regularity, GI comfort, and a balanced microbiome. No refrigeration required, making it genuinely travel-friendly for race weekends and training camps.

A Postbiotic That Supports Gut Immunity Directly – Heat-treated Bifidobacterium longum (ES1) is a postbiotic — the beneficial compounds that probiotic bacteria produce — delivered directly to the cells lining your gut. One of the most prevalent species in the human GI tract, it supports immune function at the gut level, where a significant portion of your immune system lives.

How to Use Thorne Complete Biotic

Take daily: Open one stick pack, pour directly onto your tongue, and swallow. No water needed — the powder dissolves rapidly.

Time it: Take once daily, any time of day. Consistency matters more than timing for probiotic benefits.

Pro tip: Keep a few stick packs in your race bag or travel kit — the shelf-stable formula requires no refrigeration, so your gut health routine doesn't have to stop when you're on the road.