For this reason, LR uses a mixture of citric, carbonate and gluconate salts. Ingredients Sodium bicarbonate, calcium carbonate, filler (sorbitol), filler (microcrystalline cellulose), magnesium carbonate, potassium citrate, sodium citrate, potassium bicarbonate, magnesium citrate, calcium citrate, maltodextrin, corn starch, anti-caking agents (silicon dioxide, magnesium salts of fatty acids), chromium molybdenum chloride, sodium gluconate.