What are the best Flintstones vitamins? At a time when vitamins were big and bulky and hard to swallow, Miles Laboratories introduced the first chewable vitamin for children in 1960. Eight years later ...

For decades, parents have urged kids to take a daily multivitamin — Flintstones Chewable, anyone? — to help fill nutritional gaps in their diet. Data shows that more than a third of kids in the U.S.