basic weight gaining supplements? newbie questions

[ryotolyoto]

hey guys, im fairly new to supplements in general. im about 6'0 and 140-145lbs and i workout fairly often, with atleast an hour a day, as well as train grappling a few days a week at my gym.

besides eating as much and as balanced as i can, and drinking alot of water, i drink a whey protein shake once in a while or drink a 'boost plus' ( Product Detail (BOOST Plus