the issue described in the post earlier to this :
Michael Bluejay describes that all the 9 essential amino acids and the total twenty amino acids are available even if we take a random mix of vegetables and fruits.
in other words we need not think that a vegetarian has protein deficiency .
it supports the view that vegans gets a supply of all the nutrients.
a vegan is a person who consumes only plant based food.even milk is objectionable for him.