Origin Nutrition Zinc Gluconate Dietary Supplement. 50 mg. 100 Tablets. Immune Health Support. Zinc is a trace element that is necessary for a healthy immune system. Studies show that a lack of zinc can make a person more susceptible to disease and illness. Directions: Adults take 1 tablet a day, as a dietary supplement. Store in a cool dry place, do not use if safety seal is broken or missing, keep out of reach of children. Serving per container: 100