Feisty Women's Performance

Your Diet Sucks #1: The Zero Calorie Ultra


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New year, same diet BS.

It’s that time of year when the world is drowning in bad diet advice and unsustainable fitness trends. That's why we're teaming up with the Your Diet Sucks podcast to bring you a series of Your Diet Sucks episodes this January aimed at ditching diet culture and getting you ready to fuel your goals,

Hosts Kylee Van Horn, RDN, (@flynutrition3) and Zoë Rom (@carrot_flowers_z) combine years of research, professional expertise (as well as unprofessional nutrition mishaps!), and athlete experience to deliver evidence-backed explorations of nutrition—no fluff, no fads, just science. 

In this first episode of our Feisty Women's Performance x Your Diet Sucks collab, Zoe and Kylee discuss the history and trends around fasting, low-carb, and (can you even believe it?) NO-carb fueling for ultras. Sure, there is a rich history of fasting practices in most religions, but does that mean we need to become zealots when we’re talking about optimal performance?

In addition to diving into the historical context of fasting, Kylee and Zoe also talk about:

  • How social media trends influence athlete behavior (for the sake of 'likes' and 'shares')
  • The performance benefits and risks of fasting and low-carb, high-fat diets
  • The impact of extreme dietary practices on endurance athletes
  • Finding a shift towards more balanced fueling practices in endurance sports

Why are athletes drawn to a mentality of doing more with less fuel? Even if you could do it, does that make it the best way to train and race? Even if you think there are short-term benefits, study after study confirms the long-term costs.

So, instead of being swept up in the latest social media trend, find the fueling plan that works for both Present You and Future You.

Want more on how to "unf*ck your food"? Subscribe to the Your Diet Sucks podcast feed.

And if you want to join the hundreds of women who have learned how to fuel their bodies with us, Feisty’s Fueled course will be on sale starting in mid-January. Get yourself on the waitlist now.

Feisty Strong Retreat in Atlanta - April 17-19, 2026: https://feisty.co/events/feisty-strong-retreat-atlanta/

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Feisty Women's PerformanceBy Dr. Erin Ayala

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