up or thumbs down. i want to know what it is. it convinced me. first, if you have been to a doctor at any point in the past few years you heard eat right. what does that even mean? not everyone agrees using a dietary scup plaw meant to enhance your -- supplement to enhance your well being is good. there are warnings of potential side affects of these popular supplements. and should we give the power of choice over to prescription? here to get to the bottom of the debate is dr. carol an malitzia. the big question on everybody's lips today, do you need supplementation? >> well, this is the answer. what we know and a consultant in the hole lis stick industry there are huge pit falls in