Thank you all for posting. My research on the products that are suppossed to help a horse gain weight brought about more questions than answers, so I decided to call the vet. I hated having to do that, but since I am dealing with a 25 year old underweight horse, I feel that I need to be extra careful. She did say stay away from all kinds of oil when trying to put weight on a horse of Hopes age. A horse that old cannot digest the type of fat found in oil. She said if the horse was 15 it may be something to consider. She did say that a dollop of corn oil is good for the coat and hoof and shouldn't cause any problems. In our individual situation, she thinks we need to go with the feed and the grass and add alfalfa cubes. She did come out to give to us an evaluation on Hope a few weeks ago...nothing wrong, just general geriatric care and to give her a full exam (we were having issues from previous owner...which is a topic for a different thread), so she is well aware of our individual horses needs. I didn't get to ask her all of my questions, because when she called me back, I was at work.
All that being said, I still think we will have to go with a supplement, because Hope just doesn't have a very big appetite. She isn't interested in hay after grazing all day and getting 4 scoops of feed. I have taken note of all your suggested supplements and am going to print out the info on them (because none of them are found in our local feed stores, so my vet may not yet know about them). I have 3 stores nearby where I can buy that sort of thing and all of them carry the exact same 2 products :roll: The good thing is, though, with the internet, I can buy any product I want
Any suggestions are still welcome...especially those that have worked for your senior horses. Thank you all some much for your help and suggestions.