First Endurance EFS Energy Drinks increase your performance and endurance during intense training by providing over 1,000mg of all five electrolytes. EFS is fortified with clinical doses of the amino acids glutamine, leucine, iso-leucine, and valine to improve glycogen re-synthesis and delay fatigue. EFS also contains three different high-glycemic carbohydrate sources for quick energy and increased endurance.
- Provides over 1,000mg of all five electrolytes
- Clinical doses of the amino acids glutamine, leucine, iso-leucine, and valine
- Three different high-glycemic carbohydrate sources