Not if you have a varied diet ... Meat ... fruits ..vegetables ..pourses ..wheat pastries .. dairy products etc ... in that case you don't have to, but you can calm down the vitamins ..the body is useless .. So if you're from vitamin overdose there is no danger ....: D the radiolucent ☠ ☣ ☠ ☣ ☠ ☣ ☠ the radiolucent