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  1. Home
  2. The Feed Insider
  3. How to Fuel
  4. The Year of Fiber: Why Athletes Need It
Feb 6, 2026

The Year of Fiber: Why Athletes Need It

By Matt Johnson

Founder of The Feed.

Fiber, Carbs, and HYROX — this is what we are talking about going into February. Here's the latest scoop on what we are seeing (and experiencing) in the sports and nutrition world.

If last year was the year of Creatine, this year is shaping up to be the year of Fiber.

It's exploding in popularity, and SwissRX just launched a new daily Fiber supplement that I've been really enjoying.

Here's the reality: Only 5% of people get enough fiber per day. I'm definitely in the 95% that needs more. I recently did a full "gut workup," and my results were a disaster. I'm on a rebuilding protocol now, and it's working, but too early to share the full routine (once I know it works, I will).

My main issue was gut permeability, a common issue with many athletes. The new SwissRX Fiber specifically works to improve this (I also use SwissRX Gut Defense to help). I don't take it every day—one 30-serving tub is going to last me almost 2 months.

I'm going to skip over all the Latin words for the different prebiotic strains and focus on "why fiber, and why this fiber".

As an athlete, you especially need a fiber supplement. You are consuming more simple sugars, straining your gut more, and you want to be "feeding" your microbiome for energy production, focus, etc.

The problem for athletes is that most low-cost fiber just sends you to the bathroom or the bushes. That's why SwissRX Fiber has 11g of strategically selected fibers that are gentle and work with your microbiome, not against it. It is a sipping fiber, not a chugging fiber.

When it comes to Fiber, there are the basic ones (think grocery/drug store), then there are the fancy ones. SwissRX is genuinely different; it leads the super premium fiber category with ingredients you aren't going to find with less expensive options.

The two benefits I've noticed most: weight management (I'm not as hungry & better glucose balance) and energy plus mental focus, specifically cutting through brain fog. The data on how your gut drives "brain fog" is fascinating, and I'm convinced we're going to be hearing more and more about this.

The short answer is that SwissRX has the best of the best ingredients when it comes to Fiber, thoughtfully proportioned to be optimally tolerated. I've had no issues taking it. I recommend every other day.

Carbs During ALL My Workouts

I'm changing my perspective on carbs during my non-endurance workouts.

You know that feeling where you push it hard in the gym, and you're a bit messed up for the rest of the day? Tired and harder to focus? Well, that was me during most of my strength/interval workouts in the AM, and then I'd be wrecked the rest of the day.

Normally, I would use hydration during these workouts. The thinking goes that I didn't really need carbs for shorter workouts. Well, I recently switched to using Victus During, and I'm shocked at how well this has been working for me.

Victus is from the Netherlands and all their products feature more subdued European-style flavors (not super sweet). Their During workout product has a pleasant flavor but still feels like drinking water.

I don't need a scientific study to know how much this has helped me both during the workout (completing all the sets, pushing harder towards the end), but the HUGE benefit has been post-workout. I'm normal... not thrashed and ready for a nap.

It's probably more calories/carbs than I need for the intensity of the workout, but then I consume less calories/carbs later, even opting for lower-calorie lunches (yes, I mean salads).

Yes, I still think you need electrolyte hydration, but right now my go-to during my workout is to boost my carbs regardless of intensity or time.

You can use any carb drink, but if you're open to it, try out Victus During. For me, this is the perfect fit.

The Hyrox Performance Stack

If you aren't familiar with Hyrox, it's a new fitness race that's exploding in popularity. Already huge in Europe, it's doubling in size every year in the U.S. This past week, they did a huge competition inside the football stadium in Phoenix.

The format: run 1 km, do an exercise like a ski erg for 1000m, run 1km, do a new exercise. It's a fixed format, always the same. It's a full-on endurance event with a high-intensity twist.

The best part? It isn't CrossFit. Literally anyone can do it, and you won't get hurt like CrossFit.

I see this as a test bed for our high-performance products, and we now sponsor 7 of the best athletes in the world in Hyrox. In Phoenix, our female athletes got all 3 podium spots, and our men finished 2nd and 3rd after the 2024 World Champion.

Why did our athletes do so well? They're nailing their performance "stack".

Three key products:

  • Maurten Bicarb – Literally a cheat code for Hyrox

  • Nomio – From Sweden, drops your lactate levels

  • SwissRX Nitric Oxide Pro – More oxygen-rich blood flow

Each product could have its own email, but they work synergistically to make you a lactic-processing machine.

Nitric Oxide Pro gives you more oxygen-rich blood flow so you can go longer without building up lactic acid. Then as you push past that point where you're producing lactic acid, Nomio helps reduce how much you produce. Then when you finally start producing too much, Bicarb steps in to buffer the burning feeling so you can keep going.

This is literally the lactic acid performance trio that can have massive performance gains.

It's not just for competition. Using these three once per week in your hardest workout will let you push harder and as a result get more fitness gains faster.

What Else We Are Digging

Charley Magnesium Spray

We talk a lot about magnesium orally for sleep (Pillar, Dream Shot, Momentous Magtein, Magna Hydration). But what about topically? It works totally differently and can be very helpful for cramp prevention, post-workout recovery pains (when it's muscular), and also restless legs at night.

One of our athletes in the office rubs it on her feet and calves before bed, and praises it for helping her sleep better by relaxing her restless legs. People praise it for how fast it works, and it comes in a spray and gel (I like the spray).

Ketone-IQ Grape

This new Ketone flavor is here and killing it. This is finally the ketone drink you're going to want to take every day. Some benefits of focus and appetite suppression, but now in a flavor where you can't even taste the ketones.

Liposomal Glutathione

You need this is the short answer. The long answer needs its own email, but the more I dig into the "master antioxidant," the more Liposomal Glutathione is becoming a must for energy and recovery.

Glutathione isn't super effective through the gut, so when you get a liposomal version, you hold it in your mouth for direct absorption. It's like your body's master reset button.

Top selling is the Cymbiotika Glutathione—I love the gel pack format and the flavor is great. The other is Quicksilver Glutathione in a pump bottle.

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