Every athlete should know these signs of under-fueling with Rebecca McConville

You probably *think* you're eating enough. But are you?In today's episode, Dr. Erin Ayala talks with performance dietitian and eating‑disorder specialist Rebecca McConville about Low Energy Availability (LEA) and Relative Energy Deficiency in Sport (RED‑S) — and how even athletes (especially female athletes!) who think they're fueling enough might not be for the amount of activity they're doing.Rebecca breaks down the science behind LEA/RED‑S, shares practical strategies for athletes and coaches to identify and prevent under‑fueling, and explains how to create sustainable, performance‑enhancing nutrition plans.Key takeaways:LEA/RED‑S is actually a continuum of under‑fueling that can affect athletes of any size, not just “thin” competitors.Early warning signs include subtle changes in mood, sleep, menstrual cycles, bone health, and performance plateaus.Use the “energy bank” analogy (deposits vs. withdrawals) to understand deficits.Practical fueling hacks: portable “snacker boxes,” energy‑dense smoothies, and scheduled micro‑meals for busy women.A year‑long recovery roadmap (baseline assessment → acute intervention → long‑term monitoring) helps sustain health and performance.Rebecca McConville is a performance dietitian, eating‑disorder specialist, and author of Finding Your Sweet Spot. She helps athletes recognize, diagnose, and treat LEA/RED‑S through evidence‑based nutrition and holistic coaching.Links & ResourcesRebecca’s website & email: [email protected] the book: Finding Your Sweet SpotFollow her on Instagram: @rebeccaeddietitian Join us at Feisty Fest - September 18-20th, 2026: https://feisty.co/events/feisty-fest/Sign up to Receive The Feisty Women's Performance Newsletter:https://feisty.co/newsletters/feisty-womens-performance/Follow us on Instagram:@feisty_womens_performanceVisit the Feisty website at https://feisty.co/ for info on all of our events and podcastsSupport our Partners:Momentous: Head to https://www.livemomentous.com/ and use promo code PERFORMANCE for up to 35% off your first orderHettas: Use code STAYFEISTY for 20% off at https://hettas.com/ Wahoo: Learn more about Wahoo Fitness Products at: Wahoo: Learn more at https://shorturl.at/WVhdr Tifosi Optics: Use code FEISTY2026 for 20% off at https://tifosioptics.com/If you found this episode valuable, subscribe to the Feisty Women’s Performance Podcast, leave us a 5‑star review, and share it with fellow athletes or coaches. Follow Rebecca on Instagram for more nutrition tips, and join our community to stay updated on future episodes that highlight thought leaders and subject matter experts in the women’s health & performance space.