Potassium is an essential dietary mineral and electrolyte. Potassium citrate is a potassium salt of citric acid. It is a crystalline powder with a slightly salty taste. If you follow a largely plant-based diet, there's a good chance you are getting enough potassium. However, if your diet includes more processed foods, you may not be consuming an adequate amount. Speak and get advice of a medical practitioner prior to use.