9. Vitamins
Hard to believe, right? You’re doing all the right things to maintain optimal health like exercising, eating healthy, taking vitamin supplements and avoiding drugs and alcohol and you still failed a drug test? It might be the vitamin supplements. Fortunately it’s usually only the B vitamins that can cause problems, such as flagging you as a user of THC. Stay away from the B2, B6, B-12 and whatever other B’s there are out there just to be on the safe side until you are all done with the drug testing.
