just wanna ask u guys.ive been going to the gym for the past 5 months but only shows little changes to my body is it necessary to take supplement and protein to shape body?

thanks kapersky bro

i read this http://forum.lowyat.net/topic/367750 and so the reason my muscle wont grow because i lift the same amount of weight at gym for every session.so should i gain the weight lifting weight less reps on it?