1.6-Pounds U-7 Gastric Aid Powder is a palatable vitamin/herbal blend that helps promote a healthy equine digestive system. U-7 Gastric Aid Powder is not a calcium-magnesium-aluminum acid buffering product. U-7 Gastric Aid Powder is a revolutionary new formula for use with horses that suffer from poor appetite, poor attitude, dull coat or reduced performance. U-7 Gastric Aid Powder contains all natural active ingredients that promote digestive health in your horse.