OR prenatal vitamin only.? I can't eat right due to a medical condition..can only eat bread and fruit. Because of this my hair breaks off. I don't know whether the regular multi-vit will give me the best nutrtion plus the biotin for the best hair strength vs the whole shebang of the prenatalvitamin. I talked to a phaacist and they said it's safe to take when not pregnant when your diet is very bad.