I bought some yesterday also. Hopeful it will help to put some weight on my 25 yo mare before winter. Based on when the trademark was filed, it's a brand new product.
On Wednesday, May 22, 2013, a U.S. Federal trademark registration was filed for WEIGHT ACCELERATOR by MANNA PRO PRODUCTS, LLC, Chesterfield, MO 63005. The USPTO has given the WEIGHT ACCELERATOR trademark serial number of 85939676. The current federal status of this trademark filing is PUBLISHED FOR OPPOSITION. The correspondent listed for WEIGHT ACCELERATOR is TIFFANY L. SCHWARTZ of ARMSTRONG TEASDALE LLP, 7700 FORSYTH BLVD STE 1800, SAINT LOUIS, MO 63105-1847 . The WEIGHT ACCELERATOR trademark is filed in the category of Pharmaceutical Products . The description provided to the USPTO for WEIGHT ACCELERATOR is Horse supplements.