Product Description
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.
Supplement Facts
Frosted Orange / 30 Servings
Serving Size: 1 Stick Pack
Serving Per Container: 30
| Amount Per Serving | ||
|---|---|---|
| % Daily Value* | ||
| Heat-Treated Bifidobacterium longum (CECT7347 (ES1) 25mg | ** | |
| PreforPro® (LH01 - Myoviridae, LL12 - Myoviridae) 15mg | ** | |
| Bacillus subtilis DE111® 1 Billion CFUs 3.3mg | ** | |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
** Daily Value (DV) not established
Always Happy Promise: Don't like a product? Tell us within 30 days of receipt and we'll make it right and make you happy. Here at The Feed, we want you to love your experience and the sports nutrition products you purchase. If, for any reason, you are not satisfied with your nutrition specific purchase, tell us.
We do not accept returns on food items that have been opened, but we will issue a store credit if you are unsatisfied. In the event of a return, you must first contact us before sending back a return shipment.
Consumable products over $40 receive a 50% store credit. This includes specialty nutrition products such as ketones or supplements/vitamins.
Thorne Complete Biotic FAQ's
Everything you need to know before getting started.
Take one stick pack daily at the same time each day — most athletes prefer morning with breakfast. For best results ahead of a race or heavy training block, start taking it 4–6 weeks in advance to give your gut microbiome time to adapt.
It targets your gut from three angles at once: the prebiotic clears out harmful bacteria to make room for good ones, the probiotic introduces beneficial live bacteria that actually survive digestion, and the postbiotic directly supports your gut lining and immune system. Together they create a healthier, more balanced gut environment.
PreforPro® is a clinically studied bacteriophage — essentially a "good virus" that specifically targets harmful bacteria in your gut. Unlike traditional fiber-based prebiotics, it doesn't cause bloating and works at a very small dose, making it far more practical for athletes.
A postbiotic is the beneficial compound that probiotic bacteria produce. Instead of waiting for your gut to make it, Complete Biotic delivers heat-treated Bifidobacterium longum (ES1) directly — giving your gut lining and immune cells the support they need more efficiently.
Yes — consistent daily use supports a healthier gut lining, promotes regular digestion, and reduces the kind of GI distress that derails training and racing. Research shows that athletes who build a probiotic routine experience fewer digestive symptoms during high-intensity efforts.