TweetMost commercial gainers are loaded with maltodextrin and are acceptable post workout. Any other time, you're likely to pack on a decent amount of fat. My advice is to make your own:
150z milk (or water)
1/3 cup oats
2 tablespoons natural peanut butter
1 tablespoon flax or fish oil
2 scoops whey powder
1/3 cup cottage cheese (good before bed, if you add the cottage cheese, use water)