She is getting 3 feedings a day from her owner (who is not very horse savvy). She also has a salt lick. I did purchase Farnams' Quitt today, it is a vitamin/mineral supplement for horses that chew wood. She looks well fed and has a very shiney coat, she certainly does not look underfed. I hope this will help then. The supplement is in pellet form. I'll try all of your suggestions if this fails and I'm certainly very thankful for your input. I came to the right place! Many thanks!!!