For example the median expected annual pay for a typical Surgeon-Trauma in the United States is $361,976, so 50% of the people who perform the job of Surgeon-Trauma in the United States are expected to make less than $361,976. Source: HR Reported data as of October 2015.
As a result, protein density of optimal diets varies quite a bit among individuals. Depending on calorie intake, vegan adults generally need diets that are between 9 and 12 percent protein to meet recommended intakes. The number may be somewhat higher for those who are dieting.
Summary: It is easy for a vegan diet to meet recommendations for protein, as long as calorie intake is adequate. Strict protein combining is not necessary; it is more important to eat a varied diet throughout the day.