Maybe not as high as 2000% but it is very common to see daily multi-vitamins contain doses well above 100% for individual vitamins. The explanation I've seen be

Maybe not as high as 2000% but it is very common to see daily multi-vitamins contain doses well above 100% for individual vitamins. The explanation I've seen before stated that these vitamins are water soluble as opposed to fat soluble. You pee so much of them out that these vitamin manufacturers up the amount for better retention. I still fail to see why I would force more into my body than it wants to naturally accept.