Gastric Shield Ingredients: Water, Gelatin, Calcium Carbonate, Magnesium Oxide, Kaolin, Glycerin, Silica, Deglycerinized Licorice, Copper Proteinate, Lactobacillus Acidophilus, Lactococcus Lactis. Guaranteed Analysis Gelatin: 4000mg Lactobacillus Acidophilus: 1.5 Billion CFU Lactococcus Lactis: 1.5 Billion CFU Feeding Instructions 30-60 mL (1 oz - 2 oz) daily. What is Gastric Shield? Gastric ulcers occur in up to 90% of performance horses. There are several factors that contribute to this. Gastric Shield can offer a safe, non-toxic and cost-effective alternative. Deglycerinized licorice and silica have anti-inflammatory effects and help heal gastric tissue. Copper proteinate is very soothing to the digestive tract and can increase tissue healing. Magnesium and calcium act as a buffering agent to reduce the effects of excess stomach acid and are helpful in healing the digestive tract.