Product Description
Your gut takes a beating during hard training. Research shows intense exercise reduces gut microbial diversity and can increase gut permeability, leading to bloating, cramping, and that mid-run GI disaster you're trying to avoid.
Specific probiotic supplementation can significantly reduce markers of muscle damage and inflammation after intense training while enhancing gut health and supporting nutrient absorption.
Designs for Sport Probiotic 50 delivers 50 billion CFUs from 10 clinically-researched strains in every shelf-stable capsule—that's 2.5x more potency than other sports probiotics.
A High Performance Probiotic
Higher CFU Count – Most sports probiotics give you 15-20 billion CFUs and call it a day. Probiotic 50 delivers 50 billion CFUs of specifically selected strains proven to support athletic recovery and gut barrier function. The dose matters when your training volume is high.
Designed For the Athlete – Designs for Sport Probiotic 50 was built to support serious training and performance goals. It promotes gut health, immune function, and athletic recovery.
Survives Your Stomach Acid – Delayed-release technology plus moisture- and oxygen-resistant packaging means these bacteria actually make it to your gut alive. No refrigeration needed, and they maintain potency for your entire training season.
Studies show probiotic supplementation helps athletes recover faster by reducing muscle soreness, improving sleep quality, and lowering inflammation markers like C-reactive protein.
The mechanism is straightforward: a balanced gut microbiome enhances nutrient absorption (especially protein and amino acids), supports immune function during high training loads, and maintains gut barrier integrity when you're pushing hard. Athletes taking probiotics show reduced GI symptoms during prolonged exercise —meaning fewer bathroom emergencies during long runs or races.
How to Use Probiotic 50
Daily Dose: Take 1 capsule daily with a meal, any time of day. Consistency matters more than timing.
Best Practice: Start at least 7-10 days before key training blocks or races to allow beneficial bacteria to colonize.
Pro Tip: Pair with your post-workout protein shake—probiotics enhance amino acid absorption, maximizing your recovery benefits.
This formula is NSF Certified for Sport, vegan, gluten-free, dairy-free, and soy-free. Elite athletes and weekend warriors trust Probiotic 50 because it addresses the specific gut health challenges that come with serious training volume.
- Vegan
- Sport Tested: NSF Certified for Sport®
Supplement Facts
30 Servings
Serving Size: 1 Capsule
Serving Per Container: 30
| Amount Per Serving | ||
|---|---|---|
| % Daily Value* | ||
| Probiotic Blend 350mg (50 billion CFU) | ** | |
| Lactobacillus plantarum (UALp-05™) 20billion CFU | ** | |
| Lactobacillus acidophilus (La-14) 10billion CFU | ** | |
| Lactobacillus rhamnosus (GG) 3billion CFU | ** | |
| Lactobacillus paracasei (UALpc-04™) 5billion CFU | ** | |
| Lactobacillus casei (UALc-03™) 3billion CFU | ** | |
| Lactobacillus salivaris (Ls-33™) 2billion CFU | ** | |
| Bifidobacterium bifidum (UABb-10™) 1billion CFU | ** | |
| Bifidobacterium longum (Bl-05™) 1billion CFU | ** | |
| Bifidobacterium animalis lactis (HN019) 2billion CFU | ** | |
| Bifidobacterium breve (Bbr8) 3billion CFU | ** | |
* 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.
Probiotic 50 FAQ's
Everything you need to know before getting started.



Research shows probiotics need 7-10 days to properly colonize your gut. Most athletes notice improved digestion and reduced GI issues within 2-3 weeks, with recovery and immune benefits building over 4-6 weeks of consistent use.
The 10 strains in Probiotic 50 are specifically selected for athletic applications—supporting recovery, reducing inflammation markers, and improving nutrient absorption. It's NSF Certified for Sport, shelf-stable, and uses delayed-release technology so bacteria survive stomach acid.
L. rhamnosus GG is one of the most extensively researched probiotic strains, shown to support immune function and gut barrier integrity. It's particularly beneficial for athletes because it helps maintain gut health during periods of high training stress.
No. The advanced packaging system (moisture-, oxygen-, and light-resistant with desiccant lining) keeps the bacteria viable at room temperature, making it perfect for travel, race bags, and gym bags.

