Alex Larson | Substack

Alex Larson

I'm a Minnesota-based dietitian who works with endurance athletes on fueling for performance and body composition. Host of the Endurance Eats podcast and obsessed with pancakes and Nerds Gummy Clusters.

By Fueling Field Notes
· Launched 3 months ago

Calories are complicated, let's break it down.

What a calorie actually is, how we measure energy in and out, and why the number on the label is always an estimate.

Jun 22•Alex Larson

Lipids, Fats and Why the Seed Oil Debate Misses the Point
A deep dive into lipids, fatty acids, and why the most misunderstood macronutrient is quietly running the show behind the scenes.

Jun 8•Alex Larson

Creatine for Women: What We Know So Far
Part 2 of a 3-part series unpacking the latest creatine research

Jun 4•Alex Larson

We're starting with Carbs, of course.
A breakdown of carbohydrate structure, function, and more!

Jun 1•Alex Larson

Fueling Field Notes: A Sports Dietitian's Study Journal
Here we go! I'm documenting my prep for a sports nutrition credentialing exam!

May 28•Alex Larson

What Low-Carb Diets May Be Doing to Your Gut
A 2023 study measured the intestinal lining when endurance athletes cut carbs. Here's what they found.

May 7•Alex Larson

Do carbs help build muscle?
A 2026 meta-analysis is making the rounds in the fitness and nutrition circles, let's talk about it.

Apr 30•Alex Larson

Hot Take: Ignore calories burned on your sports watch
Your watch's calorie number is just a guess and here's the dietitian perspective that matters more.

Apr 23•Alex Larson

What's Happening Inside the Body After Crossing the Finish Line?
The science on post-race muscle damage, inflammation, and cardiac stress, and why race-day fueling matters just as much as recovery.

May 14•Alex Larson

What’s up with the David protein bars?

Mar 15•Alex Larson

Creatine and Your Brain: What the Latest Research Actually Says

Mar 19•Alex Larson

That Narrative Review Telling You to Skip Carbs? Yeah, About That.

Mar 26•Alex Larson

Creatine for Endurance Athletes: What the Newest Evidence Says

May 21•Alex Larson

What's Happening Inside the Body After Crossing the Finish Line?

May 14•Alex Larson