Originally Posted by caseymyhorserocks
Please do NOT feed your horse corn oil, or any other kind of vegetable oil. Although it is great for getting a shine on the coat and gaining weight on horses, the health risks out-lie the benefits. Corn oil contains almost all Omega 6 fatty acids, which are pro inflammatory. Then the oil and pro inflammatorys often chronically affects the horses joints, skin, or lungs.
Rice Bran is great, but, it does add weight onto horses, so don't use it on easy keepers. Adding Omega 3's into your horses diet (such as the supplement SmartOmega3). Or paprika is known to help darken and shine black coats (Black as Night is a good comercial supplement). And using a UV protectant fly sheet.
Hmm.. never heard of that, and i've personally used Veg. Oil. I mixed a small amount with both feedings with a 2yr.old QH mare I use to own when I was getting her in shape. She shined like a brand new penny after a few uses of veggie oil. I still talk to the new owner of her, no health problems. I would talk to a vet if your worried about it. That would be your best source on if its truly harmful. Maybe its long term use that affects them, if so, you could also just start them like a week before a show, then stop it afterwards. If showing is the reason you want your horse to shine :). I guess i'll have to google it again and see if any new information about this has arised.