what do you say

Yes it is. There are things that you need besides biotin, unless you live on a farm and near the sea, where you can get the essentials. Many of us don't and if we didn't take multivitamins, our health would suffer. In fact, a well known vitamin brand has a multivitamin plus biotin for those on the low-carb lifestyle. But to be generic, here is a link with more information. http://lpi.oregonstate.edu/f-w03/multi.html