 Vitamin C, potassium chloride, DL-methionine, and cranberry (which promotes overall health of the urinary tract), as well as peas, brown rice, and lentils all promote GI health and urine acidification, and can be used to correct the alkalinity of urine.Acidifying ingredients should be used with caution because over-supplying a dog can lead to metabolic acidosis.Regular monitoring of the acidity of a dog's urine during the transition onto a plant-based diet, changes in the diet, and during periods of illness are recommended.