“Proving there was a market for high-end nutritional supplements for distance freaks, First Endurance has found success in becoming the Ferrari of sports-supplement companies.”
“First Endurance produces supplements that deliver on their promise, thanks to clinically proven dosages of endurance boosting ingredients.”
“I'm honestly surprised at how good I feel everyday.”
Substantial Carbs Per Hour
“EFS-PRO hits the mark when it comes to easiness on the gut.”
Tastes Amazing
“EFS-PRO keeps me well-fueled and tastes amazing.”
Game Changer
"The new EFS-PRO formula is a game changer!"
Latest Posts
Introducing: EFS-PRO High carb
By First Endurance
We just launched a new, re-engineered EFS-PRO. The conversations, surveys, and prototyping we’ve done with many of you are why. And while the formula and the research that went into it are complicated, the entire project is really about one word: Carbs.
Altitude Camp on Mt. Etna
By Larry Warbasse
Larry gives us a look at how he eats, recovers, and maximizes gains on the slopes of the legendary climb.
No Sleep Till Bogota
With Rob Britton and Griffin Easter
Transcordilleras is a gravel epic through the Colombian Andes over 600 miles. First Endurance athletes Rob Britton & Griffin Easter share their adventure.
Blasting Meatloaf in Colombia
With Whitney & Zack Allison
Transcordilleras is a gravel epic through the Colombian Andes over 600 miles. First Endurance athletes Whitney Allison & Zack Allison share their adventure.
Beta Alanine: Better Than Bicarb
By Dr. Luke Bucci, PhD
Dr. Bucci explains how beta alanine neutralizes ATP-related acid more effectively than bicarb – and it does so without bicarb’s dosing issues, brief benefit window, and calamitous impact on GI tracts and sodium levels.
Fueling Considerations for Female Athletes
By Jennifer Kurtz, PhD, CISSN, CSCS, EP-C
Dr. Kurtz takes a look at specific nutritional strategies that female athletes can take to get the most out of their performance and recovery during the menstrual cycles, including specific carb-intake recommendations and a handful of nutrients that are especially critical for each phase.