Does anyone use Metaboleeze (by Kentucky Performance Products) or APF - Advanced Protection Formula (by Auburn Labs) & if so, what kind of results have you had by using them? My vet wants me to put Chardonnay on both of these to see if we can get her weight down. Char's my 18 yr old Morgan mare (14.2 & 1200 lbs , you read it right, 1200 lbs!) who is an extremely easy-keeper. The girl just looks at food & gains weight! She is also insulin impaired (not resistant, though). She had a complete metabolic work-up this summer down at the U of M because she was showing some subtle signs of Cushings but that was ruled out. It's virtually impossible to get weight off of her (other than starvation) & keep it off even with being on a very strict diet. She gets no grain what-so-ever. She gets 1 cup of Safe Choice feed at night that contains her supplements - Cosequin, chromium, cinnamon & Gro-Strong mineral - & a small flake of low quality grass hay. During the day she gets app. 3 flakes of low quality grass hay for a total of app 12 lbs/day or 1% of her body weight. She is turned out during the day (no pasture) & comes in at night. (Feeding instructions per U of M vets.) She has free choice access to salt & water. She is worked on a regular basis, usually everyday, but this horse has more muscles & more stamina than any horse I know. She can go for 5 miles or more at a steady trot & she won't even break into a sweat. If anyone has any thoughts or suggestions, please feel free to share. Thanks.