Weight gainers were popular years ago mainly because of the name itself. There are no current weight gainer that is worth taking right now. The majority of them are all way too high in sugar and too low in protein. Basically what they do is add a bunch of nutrient sparse calories that go more toward increasing fat than muscle.
It is recommended to avoid at least the current crop of weight gainers. As for right now, leave the weight gainers on the shelf.
