Product Description
Every hard training session pulls blood away from your gut and toward your working muscles. Do that repeatedly — especially while fueling with gels and sugary drinks — and your intestinal lining breaks down. Tiny gaps form, toxins leak in, and the bloating and cramping starts. That's not a weak stomach. That's a compromised gut lining.
SwissRX Gut Defense is the gut repair supplement trusted by pro cycling's medical staff — built to seal those gaps and get your digestion back on track.
Clinical L-Glutamine Dose — Not the Watered-Down Version Most L-Glutamine supplements underdose. Gut Defense delivers a clinically effective 4g of L-Glutamine — the amino acid that acts like spackle for your intestinal lining, patching leaky areas and dialing down inflammation where it starts.
A Full Repair Stack, Not Just One Ingredient L-Glutamine is the anchor, but it doesn't work alone. N-acetyl D-glucosamine fills the gaps between mucosal cells. Aloe Vera Extract soothes irritated tissue. DGL Licorice Root protects your intestinal lining and supports healthy bacterial balance. Zinc and Vitamin A shore up immune function and keep your mucosal membranes intact.
Swiss Chocolate Flavor That Actually Tastes Good This isn't a "hold your nose and chug it" supplement. Mix one scoop into milk or water and you've got a chocolate shake that most athletes genuinely look forward to. Easy to take daily — which means you'll actually take it daily.
Your gut lining is one cell thick. L-Glutamine is the primary fuel source for those cells — it rebuilds what hard training breaks down. The supporting ingredients handle inflammation and reinforce the mucosal barrier so the lining stays intact through heavy blocks, race prep, and travel.
How to Use SwissRX Gut Defense
Daily use: Mix 1 scoop (6.4g) into 8–10oz of water or milk, once daily. Evening after dinner works well, it repairs while you recover overnight.
During hard blocks or travel: Use daily without skipping. These are the windows when your gut is most vulnerable.
Pro tip: Pair with Promix Debloat in the morning for 24-hour coverage — Debloat rebalances your microbiome while Gut Defense rebuilds the lining.
Dr. Kevin Sprouse, Head of Medicine for EF Education-EasyPost Pro Cycling, calls this the single most effective supplement he's encountered from The Feed and now recommends it to all of his patients. Athletes who use it consistently report the bloating and cramping that used to derail their long rides and runs simply stopping.
Think of it as Teflon coating for your GI tract, so nothing leaks through that shouldn't.
Supplement Facts
30 Servings
Serving Size: 1 Scoop
Serving Per Container: 30
| Amount Per Serving | ||
|---|---|---|
| % Daily Value* | ||
| Calories 5 | ** | |
| Total Carbohydrate 1g | ** | |
| Total Sugars 1g | ** | |
| Vitamin A (from 2,000 IU as Palmitate) 600mcg | ** | |
| Zinc (as TRAACS Zinc Bisglycinate Chelate) 10mg | ** | |
| L-Glutamine USP 4g | ** | |
| N-Acetyl-D-Glucosamine 500mg | ** | |
| Deglycyrrhized Licorice Root Extract 400mg | ** | |
| Aloe vera Leaf Gel Extract 75mg | ** | |
* 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.
SwissRX Gut Defense FAQ's
Everything you need to know before getting started.
Once daily, any time that fits your routine. Many athletes prefer it in the evening mixed into milk after dinner — that way it's working to repair your gut overnight while you recover.
Three to four times per week works well for maintenance. If you're in a heavy training block, tapering for a race, or traveling, use it daily. Those are the windows when your gut lining is under the most stress.
L-Glutamine is the primary fuel source for the cells that line your intestinal wall. During intense training, blood flow shifts away from your gut, which weakens those cells. Supplementing with a clinical dose helps rebuild that lining — which means fewer leaks, less inflammation, and less GI chaos on long efforts.
Most L-Glutamine products underdose — you'd need to take 16 capsules of a typical supplement to reach a clinically effective amount. Gut Defense delivers the full therapeutic dose in a single scoop, plus supporting ingredients like aloe vera, DGL licorice root, N-acetyl D-glucosamine, zinc, and vitamin A that most standalone products don't include.
Most athletes feel a difference within two to three days of consistent use. Some notice it faster. For best results, use it consistently rather than sporadically.