Shahin Rezaei is a bodybuilding coach and model

Cast aside preconceptions of juiced-up gym bros with veins for days – when you strip it right back, bodybuilding is about just that: building your body. Just ask IFBB pro champ and USN sports nutrition ambassador, Ryan Terry. Not only did the labourer-turned-lifter win the Arnold Classic in 2017, he was also the highest placed Brit in Mr Olympia, so the competitive bodybuilder knows a thing or two about muscle mass.