When I was little, I thought the taste of Flintstones Children's Vitamins  ($16) were amazing. No need for my mom to hound me about taking vitamins because I took them willingly, and then some. In fact, she used to hide them from me in fear of having her small child overdose. And now as an adult, I am still very much into my vitamins, particularly for the beauty benefits they provide. So, when it comes to beauty, what do you know about the "ABC"s of vitamins? Take my quiz to find out.