15 nutrients 8 characters & 4 flavors. Sounds like math homework! Flintstones multivitamins with immune support* for kids have been providing kids nutritional support as they grow up healthy and strong for more than 50 years. Flintstones chewable vitamin for kids provide 15 key nutrients in easy-to- chew assorted fruit flavored chewable tablets that they will love. These daily chewable kids immunity vitamins* provide vitamins and minerals that growing bodies may need. Flintstones kids immune support provide a daily boost of immunity support* with Vitamins A C D and E.* These kids vitamins also contain B Vitamins to help convert food to fuel and Vitamins A C and E support eye health.