Mr Smith:
I've actually seen this as a plot point in multiple stories where someone is mainly fattened up mainly this way.
Obviously not intended to be realistic but does make me wonder.
just doing the math... 1 litre of breast milk contains 700 calories... it takes 3,500 calories to add 1 lb of fat... so someone would have to drink 5 litres of breast milk to gain 1 lb?
so... a lot!
