Hi,

By Friday, you're either crushing your training week or your gut is begging for mercy. Either way, this email is for you.

Gut health isn't sexy. It's not going to shave 30 seconds off your 5K or add 20 watts to your FTP. But here's what it will do: help you absorb the nutrition you're taking in, reduce bloating, handle those gels without a mid-race disaster, and rebuild your intestinal barrier so you can train harder without feeling wrecked (or getting headaches and brain fog from leaky gut issues).

This is the stack I use. And honestly, I wish I'd started it 10 years ago.

All of these are on sale right now. 25% Feed Credit on every order, and SwissRX is 33% off.

1. SwissRX Fiber - 33% Off

Let's start with the foundation. You need fiber. But not just any fiber—SwissRX Fiber is the super premium version made specifically for athletes.

This is the best of the best, regardless of price. It's clean, easy-to-mix prebiotic fiber that feeds the good bacteria in your gut without wrecking your stomach. A lot of fiber supplements will send you running for the bushes mid-workout. SwissRX Fiber is gentle enough that it won't.

I take one scoop in the morning with water. It keeps things moving, reduces bloating, and helps create the right environment for everything else in this stack to work.

And here's a bonus: it's really good with warm water. It just happens to be as delicious as it is good for you.

If you're an athlete eating a lot of simple carbs (gels, sports drinks, white rice), your gut microbiome is probably starving for fiber. This fixes that.

If someone asks: "It's prebiotic fiber that feeds the good bacteria in your gut and keeps digestion smooth."

2. Happy Tummy Debloat - 33% Off

Loved by our female athletes first and foremost.

Happy Tummy combines targeted probiotics, gut-soothing herbs (Slippery Elm, Marshmallow Root, Aloe), and L-Glutamine to reduce bloating and support your gut lining. You can take it before meals, daily, or just as needed. I keep a box on my desk and reach for it when I know I'm going to be eating something that doesn't sit well.

The Tropical flavor is really nice, so it's very pleasant to drink.

If someone asks: "It's probiotics and gut-soothing herbs that reduce bloating and support digestive health when you need it."

3. SwissRX Gut Defense - 33% Off

This is where it gets interesting.

Gut Defense is L-Glutamine, Aloe, and Licorice. Think of it as spackle for your gut lining. If you're doing long endurance sessions and pounding gels, your intestinal barrier takes a beating. Gut Defense helps repair that damage and build armor so gels don't wreck you mid-run.

I take it daily as part of my Foundation stack, but you can also take it on its own. One scoop in water or mixed into a shake.

This is the product I recommend most to athletes who say "gels destroy my stomach." Fix the gut lining first, then the gels work better.

If someone asks: "It builds gut armor so you can handle gels and hard training without stomach issues."

4. BodyBio Calcium/Magnesium Butyrate - Get 25% Feed Credit

My doctor put me on this, and I'm glad he did.

Butyrate is a short-chain fatty acid that helps enhance intestinal barrier function. Translation: it stops leaky gut. It works differently than Gut Defense, but they complement each other. Gut Defense builds the armor; Butyrate reinforces the seal.

This is ideal when paired with Gut Defense.

I take 2 capsules in the morning. You don't "feel" it working, but over time, you notice you're not as bloated, your digestion is smoother, and recovery feels cleaner.

If you're serious about gut health, this is the next level.

If someone asks: "It's a supplement that reinforces your gut lining and stops leaky gut."

5. Microbiome Labs MegaIgG2000 - Get 25% Feed Credit

Think of this as PacMan for your gut.

MegaIgG2000 neutralizes all the harmful bacteria. It's a cleanup tool. While Gut Defense is building walls and Butyrate is sealing cracks, MegaIgG2000 is going through your gut and clearing out the stuff that shouldn't be there.

This is almost the same formula as SwissRX Gut Health version. Both work just as well.

In higher dosages, it's used for people with IBS. For athletes, it's about creating a clean slate so the good bacteria can thrive.

I cycle this one—I'll do a month on, then take a break. It's not something I take every day year-round, but when I use it, I notice a difference.

If someone asks: "It's like PacMan—it eats the bad bacteria in your gut so the good stuff can take over."

Bonus: Microbiome Labs MegaSporeBiotic - Get 25% Feed Credit

If you're going to add probiotics, make them count.

MegaSporeBiotic is a spore-based probiotic, which means it actually survives your stomach acid and makes it to your gut alive. Most probiotics die before they get there. This one doesn't.

I take 2 capsules every morning. It helps maintain a healthy microbiome, supports immune function, and keeps digestion running smoothly.

If someone asks: "It's a probiotic that actually survives your stomach and makes it to your gut."

My Current Stack:

Every morning:

  • SwissRX Fiber (1 scoop)
  • Gut Defense (part of my Foundation sachet)
  • BodyBio Butyrate (2 capsules)
  • MegaSporeBiotic (2 capsules)

As needed:

  • Happy Tummy Debloat (after lots of gels, high carb fueled workouts, or as needed)
  • MegaIgG2000 (cycled, 1 month on/off)
Your gut is the foundation. Fix it, and everything else works better.

Get 25% Feed Credit on all gut health supplements today.

- Matt

Founder
The Feed