Ribonucleic Acid (RNA), derived from yeast, supports cell replication, growth, and protein synthesis.* Promotes healthy cellular growth and development Supports healthy cellular functioning* Take one tablet per meal, or as directed. Serving Size: 1 tablet Amount Per Serving Calcium ... 20mg Proprietary Blend ... 270mg Ribonucleic acid and magnesium citrate. Other Ingredients: Calcium lactate, cellulose, arabic gum, and calcium stearate. Caution: This product is processed in a facility that manufactures other products containing soy, milk, egg, wheat, peanut, tree nuts, fish, and shellfish.