iet ary ▁ing red ients " ▁in ▁these ▁products ▁may ▁include : ▁vit am ins , ▁min er als , ▁her bs ▁or ▁other ▁botan ical s , ▁am ino ▁ac ids , ▁and ▁subst ances ▁such ▁as ▁en zym es , ▁organ ▁t issues , ▁g land ular s , ▁and ▁met abol ites . ▁Diet ary ▁supp lement s ▁can ▁also ▁be ▁extract s ▁or ▁concentr ates , ▁and ▁may ▁be ▁found ▁in ▁many ▁forms ▁such ▁as ▁table ts , ▁caps ules , ▁soft g els , ▁gel c aps , ▁liqu ids , ▁or ▁pow ders .” ▁ ▁Diet ary ▁supp lement s ▁do ▁not ▁have ▁to ▁be ▁approved ▁by ▁the ▁U . S . ▁Food ▁and ▁D rug ▁Administration ▁( F DA ) ▁before ▁market ing , ▁but ▁companies ▁must ▁register ▁their ▁manufact uring ▁facilities ▁with ▁the ▁F DA ▁and ▁follow ▁current ▁good ▁manufact uring ▁practices ▁( c G MP s ). ▁ ▁With ▁a ▁few ▁well - defined ▁exceptions , ▁di et ary ▁supp lement s ▁may ▁only ▁be ▁market ed ▁to ▁support ▁the ▁structure ▁or ▁function ▁of ▁the ▁body , ▁and ▁may ▁not ▁claim ▁to ▁treat ▁a ▁disease ▁or ▁condition , ▁and ▁must ▁include ▁a ▁label ▁that ▁says : ▁“ Th ese ▁statements ▁have ▁not ▁been ▁evaluated ▁by ▁the ▁Food ▁and ▁D rug ▁Administration . ▁This ▁product ▁is ▁not ▁intended ▁to ▁diagn ose , ▁treat , ▁c ure , ▁or ▁prevent ▁any ▁disease .” ▁The ▁exceptions ▁are ▁when ▁the ▁F DA ▁has ▁review ed ▁and ▁approved ▁a