GOMAD ( gallon of milk a day )
whole milk, this diet really works but you need to make sure you are doing enough volume i train everyday with lots of volume and sometimes even drink over 5 liters of milk ive been doing this for 5-6 days and ive gotten much stronger and more muscles, fat gain too though
so if you really want to gain weight and you arent bothered by the fat gain its not a meme, im 80 kg now and i was 72 kg ( but one day i even drank 7 liters of whole milk which obviously isnt healthy )