1. Potassium gluconate is widely used in the food industry as a food acidifier and preservative. 2. It can adjust the acidity of food and beverages and enhance the taste of food. 3. Potassium gluconate is also used as a food preservative to prevent microbial growth and food deterioration. 4. In addition, potassium gluconate is also used in pharmaceutical and cosmetic products as a flavoring and buffering agent.