Food & Pharmaceuticals Additives: USG is the leader in the production of high quality, calcium sulfate additives for the food and pharmaceutical markets. High purity rock and unique process technology are used to manufacture food and pharmaceutical additives. USG products are guaranteed to meet Food Chemicals Codex and National Formulary requirements. F&P products serve the food, beverage and pharmaceutical industries as an economical source of supplemental calcium. F&P products find use in enriched flour and breads, cereals, baking powder, yeast foods and bread conditioners. Anhydrous calcium sulfate is primarily used by the pharmaceutical industry as an excipient and as a tablet coating.