Answer: steroids

AnswerCrossword Clue
STEROIDSMuscle-building drugs
steroidsSTEROID, a type of chemical compound
steroidsfat-soluble organic compound
STEROIDSSome people are big on them
STEROIDSNFL no-no
STEROIDSBanned NFL substances
STEROIDSNo-nos for Olympians
STEROIDSGift for the Hulk?
STEROIDSOlympic no-no
STEROIDSMuscle builders
STEROIDSAthletes' no-nos
STEROIDSShots taken by some athletes
STEROIDSSome athletes shoot them
STEROIDSSome bodybuilders' body builders
STEROIDSControversial athletic treatments
STEROIDSSports no-no's
STEROIDSControversial compounds
STEROIDSNo-nos for an athlete
STEROIDSCertain hormones
STEROIDSSex hormones, etc.
STEROIDSControversial strength builders
STEROIDSOlympic no nos
STEROIDSSubstances banned by most sports organizations
STEROIDSDurabolin and Dianabol
STEROIDSSubject of the 2007 Mitchell Report
STEROIDSPerformance enhancers in the news
STEROIDSPro sports hot topic