Electrolytes
Episodes covering electrolytes — sodium, potassium, magnesium, hydration protocols, and mineral balance research.
Essential minerals (sodium, potassium, magnesium) for hydration, muscle function, nerve signaling, and exercise performance
Electrolyte balance is fundamental to performance and health. Most people underestimate sodium needs, especially active individuals and those on low-carb diets. Proper electrolyte intake prevents cramps, maintains hydration, supports cognitive function, and can dramatically improve exercise performance.
One of the most underrated interventions. If you exercise regularly, sweat a lot, or eat low-carb, you almost certainly need more electrolytes than you're getting.
Science & Mechanisms
Mechanisms:
- Sodium: Primary extracellular electrolyte, regulates fluid balance, nerve transmission
- Potassium: Primary intracellular electrolyte, muscle contraction, heart function
- Magnesium: Cofactor in 300+ reactions, muscle relaxation, energy production
- Chloride: Works with sodium for fluid balance and stomach acid production
- Calcium: Muscle contraction, bone health, nerve signaling
Key studies:
- Sawka et al. (2007): ACSM position stand on hydration and electrolytes
- Shirreffs et al. (2004): Sodium essential for complete rehydration
- Schucany (2007): Exercise-associated hyponatremia risks
Effect sizes:
- Exercise performance: Moderate to large (especially in heat/endurance)
- Cramping prevention: Large
- Cognitive function: Moderate (when depleted)
- Recovery: Moderate
Why deficiency is common:
- Low-carb/keto diets increase sodium excretion
- Heavy sweating depletes all electrolytes
- Processed food avoidance reduces sodium
- Athletes can lose 1-2g sodium per hour
Episodes
Dr. Andy Galpin interviews Dr. Michael Ormsbee, a professor of exercise science and nutrition, about the intersection of food timing, macronutrient strategy, and supplementation...
Paul Saladino and pharmacist/author James DiNicolantonio cover creatine and carbs for post-exercise recovery, their views on fasting and keto, insulin resistance, magnesium supp...
Andrew Huberman delivers a comprehensive solo episode on the neuroscience and physiology of sodium (salt) and its far-reaching effects on brain function, athletic performance, b...
Exercise physiologist and nutrition scientist Dr. Stacy Sims joins Simon Hill to discuss the science of hydration, debunking common myths and explaining how fluid absorption act...
The AsapSCIENCE hosts take a casual, conversational look at electrolytes and sports drinks, examining whether products like Gatorade and Powerade are worth it or just clever mar...
Functional and integrative dietitian Amanda Montalvo delivers a thorough deep dive into potassium, covering its wide-ranging functions, how the body regulates it, recommended in...
Amanda Montalvo provides an in-depth exploration of sodium's functions beyond blood pressure, covering its essential roles in cell nourishment, nerve signaling, muscle contracti...
Host Wendy Zuckerman and producer Michelle Dang take on the "gallon challenge" (drinking a gallon of water daily for a week) while investigating the science behind hydration cla...
Host Noel Tarr and co-host Stephanie Ruper answer listener questions about mineral balance, adrenal cocktails, electrolyte supplementation, and how mineral needs change during p...
Integrative dietitian Allie Miller and co-host Becky Yu deliver a comprehensive primer on electrolytes, covering what they are, how they function in the body, and why maintainin...
Robb Wolf, former research biochemist, New York Times bestselling author, and co-founder of LMNT, joins Josh Trent for a deep conversation about how sodium, potassium, and magne...
Dr. James DiNicolantonio, cardiovascular research scientist and author of The Salt Fix, joins Courtney Swan to dismantle the decades-old narrative that salt causes hypertension ...
Biochemist and nutritionist Barton Scott, founder of Upgraded Formulas, joins Luke Storey to make the case that mineral balance is the foundational priority for health that most...
Danny Lennon and Dr. Alan Flanagan examine the evidence linking high sodium intake to bone health outcomes, prompted by a listener question about whether dietary salt harms bone...
Kelly Leveque welcomes back Robb Wolf, co-founder of LMNT and former research biochemist, for a founder-series deep dive into electrolytes and sodium. Wolf shares his personal j...