Children of liberals forced to be vegans typically have brain defects as a result.
A friend of ours tried to be vegan through her two pregnancies, and the check list of everything you had to eat to get enough protein short of a pound of nuts and multiple soy smoothies was too much - so she cheated and ate cheese.
I worry what happens with those who think supplements and pea powder and wishful thinking are enough to make up for the lack of protein.