Is it good to take supplements to boost your muscles and fitness??
I just started to go to the gym,and actually I'm a BIT thin...and I want to build up muscles a bit faster.so I thought of taking a supplement/protein.
But some people say that it is not good to take those,if you start taking them and when you stop them,you loose weight and becomes even thin....and there are other side effects too.
is this true??