In this episode of Fueling Fire, host Megan Lautz welcomes performance dietitian Diana Nguyen, who breaks down what pre-workout powders actually do and why most people are chasing a buzz instead of real fuel. They cover caffeine dosing, proprietary blends, safety risks, and smarter alternatives that actually work for first responders.

The host and guest also debunk common myths, explain the actual benefits and risks of popular ingredients like caffeine, creatine, and beta-alanine, and highlight the importance of proper dosing and timing. They also share tips on how to interpret supplement labels, assess third-party testing, and avoid overstimulation that can compromise focus and sleep.