# endurance athletes (blogs) — RSS Amplifier Recent posts from the 1 feeds in the RSS Amplifier directory that cover endurance athletes. Page: Feed: --- ## [Iron and Ferritin - Supplementing Smart](https://alexlarsonnutrition.substack.com/p/iron-and-ferritin-supplementing-smart) _2026-08-10 · Alex Larson · Alex Larson_ Part 3 of the series - Diet, dose, formulation, and more. Here's what the research actually supports ## [Ferritin Low, Everything Else Normal: Now What?](https://alexlarsonnutrition.substack.com/p/ferritin-low-everything-else-normal) _2026-08-03 · Alex Larson · Alex Larson_ Part II of the ferritin series! Let's dive into the labs and what you need to know about the bloodwork. ## [Ferritin: The Number No One Agrees On](https://alexlarsonnutrition.substack.com/p/ferritin-the-number-no-one-agrees) _2026-07-28 · Alex Larson · Alex Larson_ Part 1 of 3, a series where we dive into the research on iron levels and endurance athletes ## [What's up with these broccoli sprout shots ads? Science says...](https://alexlarsonnutrition.substack.com/p/whats-up-with-these-broccoli-sprout) _2026-07-23 · Alex Larson · Alex Larson_ Another supplement product on the market, and down the research rabbit hole I went. ## [Fat as Fuel: Here's Why It's Not Your Primary Performance Fuel](https://alexlarsonnutrition.substack.com/p/fat-as-fuel-heres-why-its-not-your) _2026-07-16 · Alex Larson · Alex Larson_ Fat is an impressive energy source with real limitations. Here's what the science says about when, how, and why your body uses it during exercise. ## [What's the deal with these new lactate gels?](https://alexlarsonnutrition.substack.com/p/whats-the-deal-with-these-new-lactate) _2026-07-11 · Alex Larson · Alex Larson_ A science-first look at the latest fueling trend buzz of the Tour de France ## [How Muscles Create Energy From Fuel](https://alexlarsonnutrition.substack.com/p/how-muscles-create-energy-from-fuel) _2026-07-06 · Alex Larson · Alex Larson_ From explosive sprints to long steady efforts, let’s break down the energy systems powering endurance performance. ## [Built to Move: Understanding Muscle Structure](https://alexlarsonnutrition.substack.com/p/built-to-move-understanding-muscle) _2026-06-29 · Alex Larson · Alex Larson_ Understanding what's inside a muscle fiber and why it matters for how you train and eat. ## [Calories are complicated, let's break it down.](https://alexlarsonnutrition.substack.com/p/calories-are-complicated-lets-break) _2026-06-22 · Alex Larson · Alex Larson_ What a calorie actually is, how we measure energy in and out, and why the number on the label is always an estimate. ## [More Than Muscle: What Protein Actually Does in the Body](https://alexlarsonnutrition.substack.com/p/more-than-muscle-what-protein-actually) _2026-06-15 · Alex Larson · Alex Larson_ A breakdown of protein's roles and what athletes need to know. ## [Snapshot Showdown on Google Play (Sponsored)](https://crawlproof.com/a/TZBnto5gKZZo) _2026-06-15 · **Sponsored**_ Available on Google Play for Android devices. ## [Is Creatine Still Safe at Higher Doses and Longer Use?](https://alexlarsonnutrition.substack.com/p/is-creatine-still-safe-at-higher) _2026-06-11 · Alex Larson · Alex Larson_ Part 3 of a 3-part series unpacking the latest creatine research ## [Lipids, Fats and Why the Seed Oil Debate Misses the Point](https://alexlarsonnutrition.substack.com/p/lipids-fats-and-why-the-seed-oil) _2026-06-08 · Alex Larson · Alex Larson_ A deep dive into lipids, fatty acids, and why the most misunderstood macronutrient is quietly running the show behind the scenes. ## [Creatine for Women: What We Know So Far](https://alexlarsonnutrition.substack.com/p/creatine-for-women-what-we-know-so) _2026-06-04 · Alex Larson · Alex Larson_ Part 2 of a 3-part series unpacking the latest creatine research ## [We're starting with Carbs, of course.](https://alexlarsonnutrition.substack.com/p/were-starting-with-carbs-of-course) _2026-06-01 · Alex Larson · Alex Larson_ A breakdown of carbohydrate structure, function, and more! ## [Fueling Field Notes: A Sports Dietitian's Study Journal](https://alexlarsonnutrition.substack.com/p/fueling-field-notes-a-sports-dietitians) _2026-05-28 · Alex Larson · Alex Larson_ Here we go! I'm documenting my prep for a sports nutrition credentialing exam! ## [Creatine for Endurance Athletes: What the Newest Evidence Says](https://alexlarsonnutrition.substack.com/p/creatine-for-endurance-athletes-what) _2026-05-21 · Alex Larson · Alex Larson_ Part 1 of a 3-part series unpacking the latest creatine research ## [What's Happening Inside the Body After Crossing the Finish Line?](https://alexlarsonnutrition.substack.com/p/whats-happening-inside-the-body-after) _2026-05-14 · Alex Larson · Alex Larson_ The science on post-race muscle damage, inflammation, and cardiac stress, and why race-day fueling matters just as much as recovery. ## [What Low-Carb Diets May Be Doing to Your Gut](https://alexlarsonnutrition.substack.com/p/what-low-carb-diets-may-be-doing) _2026-05-07 · Alex Larson · Alex Larson_ A 2023 study measured the intestinal lining when endurance athletes cut carbs. Here's what they found. ## [Do carbs help build muscle?](https://alexlarsonnutrition.substack.com/p/do-carbs-help-build-muscle) _2026-04-30 · Alex Larson · Alex Larson_ A 2026 meta-analysis is making the rounds in the fitness and nutrition circles, let's talk about it. ## [One platform, from silicon to agent (Sponsored)](https://crawlproof.com/a/eCRS8aoZbHqH) _2026-04-30 · **Sponsored**_ Serverless inference plus Inference Router to optimize cost and latency at scale. ## [Hot Take: Ignore calories burned on your sports watch](https://alexlarsonnutrition.substack.com/p/hot-take-ignore-calories-burned-on) _2026-04-23 · Alex Larson · Alex Larson_ Your watch's calorie number is just a guess and here's the dietitian perspective that matters more.