Dear Runner Bod,

If you’ve ever thought, “my gut just can’t handle foods like it used to,” this episode is going to challenge that narrative ….in the best way. Because while it’s easy to blame gluten, dairy, or sugar… the real issue I see over and over again in runners (and active women) is chronic underfueling. In this episode, I break down: How undereating impacts your gut lining and digestion Why low energy availability can lead to increased food sensitivities The connection between gut symptoms and RED-S (Relative Energy Deficiency in Sport) What’s actually happening physiologically (think: slowed motility, reduced enzyme production, and impaired intestinal integrity) Why eliminating more foods might be making things worse…not better If your list of “trigger foods” keeps growing, it might not be your gut failing you… it might be your body asking for more support. This episode will help you start listening differently. Jacked Granny Protein Bars have around 16 grams of protein, the perfect post-run snack or mid-afternoon fuel — go check out jacked-granny.com and use code RUNNERGIRL to save 10%. If you have questions about this episode, DM on Instagram @runnergirldietitian

you’ve ever said “my metabolism is broken”, this episode is for you. In this episode, I’m breaking down what’s actually happening inside the body when energy intake doesn’t match training and life stress—and why your metabolism adapting is a protective response, not a failure. We’ll talk about: What people really mean when they say their metabolism is “broken” How adaptive metabolism works (in plain English) Why runners are uniquely vulnerable The sneaky habits that keep the body stuck in protection mode How to support metabolic recovery without dieting harder This episode is part physiology, part reassurance, and part “let’s stop blaming women’s bodies for doing exactly what they’re designed to do.” ✨ Spoiler: You don’t need to fix your body. You need to work with it. If you’re ready to upgrade your running gear and do something good for the planet while you’re at it — go check out Definite Articles at definitearticles.com and use code RUNNERGIRLDIETITIAN to save 20% Don't forget to follow me on Instagram @runnergirldietitian

What happens when you stop trying to control your body and start trusting it instead? In this episode, I’m joined by Francesca Barbetta, aka @theearlymorningmotherrunner, for an honest, grounding conversation about healing from chronic underfueling and rebuilding a relationship with food that actually supports life, training, and motherhood. Francesca shares her journey from restriction and body control to being deeply, intentionally well-fueled and how that shift transformed not just her running, but her confidence, strength, and capacity as a mom and (ultra!!) runner. We cover: How underfueling sneaks in (even when you think you’re doing things “right”) What it looked like to dismantle control around food and body size Practical fueling strategies for ultra marathon training Balancing motherhood, work, and high-volume training without burnout Talking back to lingering food guilt and body image thoughts Making strength training work in real life This episode is for runners who want to go far without running themselves into the ground. Jacked Granny Protein Bars have around 16 grams of protein, the perfect post-run snack or mid-afternoon fuel — go check out jacked-granny.com and use code RUNNERGIRL to save 10%. Don't forget to follow me on Instagram @runnergirldietitian

The new dietary guidelines are out and we are going through the guidelines line by line to chat about the changes, the nuance and the constructive feedback I’d give! In this episode, I break down: What the new dietary guidelines actually say Where they get it right Where they completely miss the physiological reality for active people This episode is your permission slip to question the rules. If you’re ready to upgrade your running gear and do something good for the planet while you’re at it — go check out Definite Articles at definitearticles.com and use code RUNNERGIRLDIETITIAN to save 20% Don't forget to follow me on Instagram @runnergirldietitian

What if improving your hormone health didn’t require supplements, protocols, or “fixing” your body—just fueling it properly? In this episode, I break down how eating enough and fueling intentionally as a runner can inadvertently support hormone health. We’re talking improved fertility markers, fewer PMS symptoms, better cycle regularity, increased sex drive, and more support through perimenopause—all without chasing hormone hacks. You’ll learn: How underfueling disrupts key reproductive hormones Why carbs are not the enemy of estrogen or progesterone How proper running nutrition supports ovulation, libido, and cycle health Why many hormone symptoms are actually energy availability issues If you run—and have hormones (so… yes)—this one’s for you. Want to try Go Guarded? Use my code serena10 at checkout! Don't forget to follow me on Instagram @runnergirldietitian