The Ultimate Cheat Sheet on high energy sport horse feed
https://telegra.ph/5-Reasons-H%C3%B6veler-Original-Sport-Fits-a-Metabolically-Sensitive-Breed-in-Work-09-26
Horses in steady training benefit when starch sits at 15% and crude protein holds at 15.1% to help maintain working muscle. The $49.99 price keeps a training budget manageable.