Dear Sifu's

I'm currently hitting the gym almost everyday but however I'm not having a big body neither too skinny, around 53kg with 173cm height. I once over heard a brother at the gym sounds skinny people should eat every 3 hours in order to weight up the body and for workout to built the muscle. Can anyone advise me on this matter.

Another 1 more things is, I'm intend to get some supplement for gym purpose, having said this I'm not looking for a buffy body but just fit and nice. My friend told me supplement must be taken before and after gym. There are two type of supplement which is before gym and after gym! Kindly advise accordingly.

Thanks peeps