Fuelin

Magda trains 20 to 30 hours a week. For a long time, she thought her hard sessions meant she wasn't good enough.

It turned out her body just didn't have what it needed to do the work she was asking of it.

Swipe through her story. Link in comments.

If you or someone you know is struggling with their relationship with food, the National Alliance for Eating Disorders helpline is at 1-866-662-1235.

Fitness gets you to the line. Fuel gets you to the finish. Who're you watching, OCC, CCC, or Friday's 100M?👇
(We'll have our eye on one special runner! 😉 Stay tuned to find out.)

“Burnout” gets thrown around loosely, but mislabeling it leads athletes to do exactly the wrong thing.

The leading framework in sport psychology is Raedeke and Smith's three-dimensional model, which defines burnout as exhaustion that rest doesn't fix, a sense that nothing feels like progress, and a growing detachment from the sport you love.

Fueling won't cure burnout, but chronic under-fueling deepens the exhaustion and drains your reserves.

Swipe through for the full picture, and be gentle with yourself about which one you're in.

Then download Fuelin to make sure you're fueling your love for your sport!

Everyone's adding sled work. buying sandbags, and lifting heavier because HYROX is all about strength, right?

Wrong. Dr. Dan Plews of Endurox and Endure IQ holds a Kona age-group record and a HYROX pro doubles world record. His take is that the people who fade at station six aren't dealing with a weakness problem, but something else entirely.

They're facing an aerobic deficit, not a strength one.

Full 12-week HYROX build on this week's Fuelin Sessions. HYROX Fueling episode coming soon!

🔗 Link in comments.

Fall 2024, Tucson. One trip on a run, and Jennifer tore all 3 hamstrings off her sit bone with over 2.5 cm of retraction. Surgeons drilled into the bone to reattach them, and then came 6 weeks of bedrest and months of PT.

Here's what she figured out on that couch: her body didn't need race fuel anymore. As she put it, "My body no longer needed to be fueled for performance. It needed to be fueled for healing." So she went back to basics. More whole foods, more protein, fewer mindless snacks. She used FUELIN to reset her ranges and match her fuel to recovery instead of workouts.

Her motto through the whole thing: fuel for the season you're in. And when it was finally time to train again, she wasn't just rebuilding fitness. She was building on a much stronger nutritional foundation. In June 2026, she won her age group at Rockford 70.3. 🏆 She's got the USA Triathlon Nationals and IRONMAN 70.3 Michigan still ahead this season.

You're still an athlete even when you're not training. Ready to fuel for the season you're in? Link in bio 👉

There's a strange pride a lot of endurance athletes take in flirting with overtraining, as if burning yourself to the ground proves your commitment. It's worth knowing what the science actually says before wearing that as a badge.

The European College of Sport Science laid out the accepted framework in a 2013 consensus statement (Meeusen and colleagues): a progression rather than a single event, running from functional overreaching (a normal, useful part of hard training) through nonfunctional overreaching and finally into overtraining syndrome. The further down that path you go, the longer the road back. Functional overreaching resolves in days. Full overtraining syndrome can suppress performance for months and has ended seasons.

What makes it tricky is that researchers stress the condition is multifactorial. It isn't simply "too much training." It's training stress, life stress, poor sleep, and inadequate fueling all landing at once, which is why two athletes on the identical program can have completely different outcomes.

The encouraging part: the earlier stages are recoverable and largely preventable, and fueling and recovery are two of the biggest levers you control.

Swipe through for how to spot the line before you cross it. And share this with the most disciplined person you train with.

They're often the ones most at risk.

A dual world champion in his late 50s looked perfectly healthy from the outside. One blood test his GP didn't want to run may have saved his life.

This week, Scott sat down with cardiologist Dr. Troy Badger to unpack a hard truth for endurance athletes: fitness lowers your risk, but it doesn't make you immune.

When it comes to your blood panel:

✅ Doctors often give fit athletes a pass ("you exercise, you don't need that test"). That fit bias hides silent disease.
✅ Standard lipid panels skip the markers that matter most, like ApoB and Lp(a).
✅ Endurance training itself can raise coronary plaque. It's called the athlete's paradox.
✅ A "pre-diabetic" HbA1c in a lean, fit athlete is often a false reading, not a broken metabolism.

And the part that matters most isn't about giving up the sport you love, it's about identifying your risk and reducing it, so you can keep training for decades.

🎧 Full episode out now. Link in comments.

Swipe through, then tag the training partner who keeps saying "I'm fine, I don't need testing."

Follow us for more and give Troy a follow for his cardiac content.

Pro triathlete. 30 hours a week at altitude. And until recently, fueling on vibes and a banana.

Oscar didn't know he was underfueling. He just knew his performance was dropping, his recovery was off, and his mood was "way out of his control." Turned out it was all connected.

One year on Fuelin: 4 minutes off his 10k, 60-80 more watts on the bike, training load up 50%, and mood swings completely gone.

Swipe through for his story. Link in bio to start your Fuelin journey. 🔗

There's a particular kind of frustration that comes with the injury you can't explain.

You've done the rehab. You've dialed back the volume. You've foam-rolled, stretched, seen the physio, bought the new shoes. And still it comes back, or a new one takes its place. At some point you start to wonder if your body is just fragile, or if you're simply the kind of athlete who breaks.

Here's the more useful possibility: the problem isn't your body's durability. It's what you're giving it to build that durability with.

This is one of the most under-discussed ideas in endurance sport, partly because it's less satisfying than a training fix and partly because it sits uncomfortably close to conversations about eating enough that a lot of athletes would rather avoid. But the athletes who stay healthy year after year almost always have one thing in common, and it isn't luck or good genes. It's that they fuel enough to let their bodies keep up with what they're asking of them.

The carousel breaks down the mechanisms. This is just the reminder that staying healthy is a skill, not a lottery, and fueling is a bigger part of it than almost anyone tells you.

Save it, and share it with someone who's tired of being hurt.

Stat: Among female recreational runners, 33% of participants reported two or more stress fractures, and 82% of that group were classified as at risk of low energy availability. The study was 485 female recreational runners aged 18 to 25 using the LEAF-Q questionnaire.” (Wilwand M, Pritchett K, Miles M, Pritchett R, Larson A. "The Prevalence of Stress Fractures and the Associated LEAF-Q Responses, Self-Reported Exercise Volume and Dietary Behaviors in Female Recreational Runners.")

How much caffeine can an ultra athlete actually take? 🚴

Josh Amberger rode 356 miles at Unbound XL and sent us the
breakdown. Seven caffeine gels, one Red Bull, eight
liters of Coke. Precision Fuel and Hydration ran the total:
around 1,600mg, roughly 23mg per kilo.

Scott saw that number and assumed it was a typo.

It wasn't. And when we went looking for the guidelines that
cover it, there isn't one. Almost every caffeine study in the
literature runs 1-3 hours in a lab, so the ultra
numbers? Extrapolations, at best.

Megan's answer is that there's no ceiling someone else can hand you.
There's only yours, and you have to find it in training. And her point is well taken:
caffeine isn't fuel, or a substitute for proper fueling.

Save this before your next long one. Send it to whoever hands
you the gels.

Full episode in the comments.