3750 calories in gaining powder, 620 calories in milk = 4370 calories funneled into my fat face! If you know me, I'm not one for gaining shakes. After testing several powders and combinations this is the only one I can commit to funneling. Today is a big experiment as I funnel a gainer shake for the very first time! In this video expect a very hesitant Rosie being extra honest with her first gaining shake experience, and watch as I chug down as many calories as possible! Expect more videos like this as I experiment to see what gaining shake I can consume the most of, to accelerate my gain as much as possible!