Originally Posted by kitten_Val
No offense to anyone, but I don't believe the feed will calm down a truly easily-excited horse. Well unless you load it with 10 lbs of sweet feed and then switch to hay only. I feed my horse hay and 1 lb of low starch/low sugar (mostly beet pulp) pellets twice/day and she gets overexcited in matter of couple mins for no reason. And I mean head high, legs shaken, tail up, etc.
Well no, a change in diet won't help all exitable horses, especially if they're already on a "calm" diet. However, as I said, diet and environment "can" cause behavior changes and should be examined before putting a horse on a calming supplement.
My TBxArab gelding was only getting 1 lb of oats and 3 lbs of Alfalfa pellets for a while (along with grass hay a vitamin supplement), and he was still a bit hyperactive and jittery. Sometimes it doesn't take 10 lbs of sweet feet to negatively effect a horse's behavior