GOMAD is probably the most straightforward diet for gaining weight (preferably along with compound free weight lifts, eg, squats. Otherwise all the weight gain

GOMAD is probably the most straightforward diet for gaining weight (preferably along with compound free weight lifts, eg, squats. Otherwise all the weight gain is fat instead of muscle). What it is - take your normal diet, and on top of that, drink a gallon of whole milk every day. A gallon of whole milk is 2400 kcal (200g carbs, 120g fat, 120g protein). Along with your normal food intake, this will make you gain weight.