i've done a lot of research, and i wouldn't reccomend feeding your horse a potato.
however, i have read that most horses enjoy doritos and other chips, so chips should be relatively harmless to your horse. i wouldn't...

ok, i was just looking, and i put a list together of things safe and unsafe for your horse. Beware, it's kind of long...

SAFE
1. Hay
2. Grain
3. ...

hehe, i know my horse the big soft mints from wal-mart. she also loves left oer cheerios, granola bars, corn husks, cut grass (in very small ammounts or it could be harmful), sugar cubes, apples and apple peels, carrots, a...