In the future, taking vitamins will be much different. Instead of taking a pill jammed with every single vitamin known to mankind in amounts that would raise an earthworm from the dead, smart electronics will determine exactly what you need.
You will put your finger up to a sensor, and your present vitamin needs will be analyzed. The appropriate vitamin cocktail will be dispensed into your cup of coffee, and you are good to go!
The kiddies version will contain florescent dyes so that little boys will be glad to take their vitamins just for the coloured pee.