The Worst Advice We've Ever Heard About non-soy horse feed

https://sites.google.com/view/muscle-building-feed-for-horse/

Half-halts come from conditioning, and condition begins with amino acids — threonine at 0.6% and methionine at 0.25% are on the label. Add Pur.Muskel into a complete ration in support of the muscle that dressage demands.