The Electrolyte King
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Feb 19, 2016 – The latest mix from First Endurance, EFS-Pro, has up to 1,800 grams of electrolytes per bottle
from five different sources, which adds up to 10 times what some other leading mixes provide.
EFS-Pro can be mixed differently according to your needs, from 80 calories and 933mg electrolytes to 160 calories and 1,866mg of electrolytes.
Even at its most potent, EFS-Pro has never given us a hint of gut rot. Best, EFS-Pro has not been designed to taste like fruit punch or lemonade, it drinks like flavored water, with only a hint of lemon and almost no sweetness, just right for a long hot day in the saddle.