Postassium Citrate is a potassium chelate which occurs naturally in foods, along with phosphorus and calcium, it is the most abundant mineral in a dogs body. That’s unlike potassium salts, which must be added in dog supplements. Raisins contain the highest levels of potassium citrate, raisin’s toxicity to dogs eliminates the food as a dietary source for the nutrient, a good food choice has the next highest concentration, potatoes. Potassium citrate is a nutrient that increases citrate levels in a dog’s urine, attracting calcium away from oxalates. Dog health pertaining to kidney and bladder stones can be addressed by using this nutrient in a dog supplement. When calcium binds to citrate, the resulting calcium citrate tends to remain dissolved instead of precipitating out as a mineral deposit.