Banana is like helping for weight loss program lehh.
Depending of what kind of weight you want to gain. whether those who just want to gain for the sake of gaining, or wanting to look bigger in size and not fat.
Someone commented that every day eat Mac is one of the ways to go for fast results that will help u gain weight. But if Mac is too ex for you on a daily basis, then you can try your house downstairs chicken rice add rice for a period of 2 to 3 weeks bah. topping it up with a ice cream will be good to go.