Electrolytes have become one of the biggest trends in sports nutrition, but how much do they really matter for runners and endurance athletes? In this episode of Your Diet Sucks, Zoë and Kylee dig into the science of electrolytes, hydration, and sodium loss—separating evidence-based guidance from wellness marketing.

We break down what electrolytes actually do, how much sodium athletes lose in sweat, when electrolyte drinks like LMNT or Liquid IV can improve performance, and when plain water is completely sufficient. We also look at the history of sports drinks, the rise of the hydration industry, and why research on women and electrolyte needs is still so far behind.

If you’re trying to build a smarter hydration strategy for long runs, hot-weather training, altitude, or ultramarathons, this episode gives you clear, practical guidance grounded in real science—not hype.