Bonus: Skratch Labs Founder Dr. Allen Lim on the Science of Sweat

This bonus episode is brought to you in collaboration with Skratch Labs, creators of hydration and fueling products designed for people who sweat on purpose.

Whether you're training for your next ultra or just trying to feel more human after a hot yoga class, this episode is for you. Zoë sits down with exercise physiologist and Skratch Labs founder Dr. Allen Lim to talk about the science and soul of sports nutrition.

This episode covers:

• Why GI distress happens—and how to avoid it

• How to personalize your fueling strategy (yes, even if you’re not “a serious athlete”)

• The surprising science behind salt, sweat, and hydration

• Allen’s “me-search” approach to product development

• What it really means to get better—and why progress matters more than perfection

• The emotional side of fueling, power-to-weight myths, and how nutrition can support identity, community, and joy

We promise: this is not just a long-form ad. It’s a deep, honest conversation about taking care of yourself when you’re asking your body to do hard things.

Want to try Skratch for free?
Use code YDSAMPLE at skratchlabs.com for a free Fuel Sample Pack, including singles of their Sport Drink Mix, Super High-Carb Sport Drink Mix, Energy Bar, and Energy Chew.