Soy bean/soy products of all types
I board her, where she gets about 5-6 flakes per day of pretty decent quality hay, with no alfalfa in it (mainly orchard/timothy grass mixture). She gets more hay when she's out all day grazing as well, since they are dry lots (no fresh grass, boo) :p
Anyway, because I can't feed her molasses or soy I had to create a meal for her, all the commerical feeds use one of the other unfortunately. So I feed her:
3/4 scoop of rolled barley (mainly just to mix her supplements with) 2x/day
And she gets a SmartPak of these supplements to add in her vitamins/minerals:
Tri-Amino (to add protein): http://www.smartpakequine.com/triamino-8489p.aspx?cm_vc=Search
SmartVite (for her vits/mins): SmartVite Performance Grass Pellets - Horse Multi-Vitamin Supplements from SmartPak Equine
SmartShine Ultra (for coat health): SmartShine® Ultra - Horse Skin & Coat Supplements from SmartPak Equine
Now, the SmartShine Ultra I'm not sure is really doing anything and if it is, I haven't noticed a difference yet, so I may give up on that one. But the tri-amino really made a huge difference - made her put on some much needed weight over the winter when she was getting kinda ribby looking.
She is an Eventer and gets worked for at least an hour 3-4 times per week, shows almost every weekend so she definitely is fit! My only complaint is she's starting to look a little on the skinny side again (just a tad though) and her coat is still kind of dull looking (she's a buckskin who was a gorgeous deep gold color back before we found out about her allergies and had to take her off the sweet feed the barn was feeding her; now she's a washed out light cream color).
A friend suggested Rice Bran, but the nutritionist at the local feed mill said they'd have to eat a LOT of it to make a difference and suggested to add more protein to her diet, in the form of Alfalfa pellets. I'm going to give it a try, but wanted to see if anyone else had any experience with Rice Bran? My friend swears by it, so I'll probably try it after the alfalfa just out of curiosity but just wanted to see if anyone else has any experience as well?
And does anyone have any other recommendations for a shiny coat? I know flax seed has been mentioned before, but I can't make it to the barn every single day and the barn isn't going to spend their time grinding flax seeds for me when they have 40+ mouths to feed! (and I've heard if you grind them up and leave them sit, they're pretty worthless to feed since all the oils come out and go away).