I have three thorougbreds That lost weight and there top line in the last few months i've have been on sentinel feed for the last month but I would like to and  switch over to tribute i'm trying to figure out which feed would be better for them to gain weight muscle and a top line.They have Hay twenty four seven in they are limited on grass but they do get grass Not as much as I would like but they have hay twenty four seven including alfalfa The one has a red cell deficiency in looks absolutely horrible So i'm trying to figure out which one would be better for them I also have a quarter horse that I barrel race He's kinda chunky put could use a few pounds but obviously either way he would be fed less then the others. So which feed would be better they're also all prone to ulcers They're very sensitive To rich feeds. They are 4, 6, and and 8 years old qh is 15

I really like the Kalm N EZ.  I have a 29 yo appendix gelding who is more of a hard keeper.  I was previously feeding Purina Senior Active, but he was diagnosed with Cushing's and my other gelding is insulin-resistant.  So I switched.

I can say that I've been incredibly surprised with the Kalm N EZ.  My 29yo is also Mr. Picky, and he gobbles the stuff up.  With the Purina, he'd play musical tubs.  With the EZ, he stuffs his face in and doesn't come up for air.  He is eating about 2.5lbs twice a day. 

My insulin-resistant guy gets fat on air, so he only eats about a pound.  He has lost his fat deposits and doesn't look like a fat rolly pony anymore.