Hi T.---Here is a website that lists RDA's for everyone. Hope this helps. http://www.puristat.com/standardamericandiet/rda.aspx
I would like to add that RDA's are based on what a 150 lb. man needs to prevent diseases of deficiency during wartime. You'd probably agree that there aren't very many people diagnosed with vitamin deficiencies any longer. Another thing to remember is that there are numerous studies showing that isolated vitamins do not work in the body the way that nutrients from whole food do. In fact, it can be dangerous if a person consumes too much.
Your best source of nutrients is food. I have a really great chart that shares serving size requirements for kids of all ages that I would be happy to share with you.
Be very careful of isolated nutrients. Oprah had Consumer Labs do a study several years ago to see if what was on the label matched what was actually in the vitamins, and vice-versa. A couple of childrens vits had lead in them. Some prenatals didn't have all of the folic acid in them as listed on the label, etc.
Feel free to contact me if you would like to discuss any of the topics that I've touched on. I am passionate about health and prevention, so much that I am taking a series of wellness classes taught by a Naturopath who has her PhD in Nutrition. I've never been a regular vitamin taker, but I have found a great supplement made from 17 different fruits, veggies and grains and I wouldn't miss a day.
Oh, and it should be very important for you to call the manufacturer of any supplement you are looking at and ask them about any INDEPENDENT, peer-reviewed research that they've done ON THAT VITAMIN. It can't be research done on vit C, D, E, etc. It has to have been done, on the Flintstones product, for example. And it CAN'T have been done by the company that manufactures it. A manufacturer or product may be very good, but research done in-house could very possibly be biased.
I hope this all helps. Let me know if I can be of additional service. In health, D. ###-###-####