What steps should vegetarians take to ensure they get proper levels of protein?

Answer:

Vegetarians should eat a variety of protein-rich foods, such as beans, lentils, peas, nuts, seeds, soy, eggs, and dairy products if included in their diet. Combining complementary proteins, such as beans with rice or peanut butter with whole-grain bread, helps provide all essential amino acids. They should also eat enough total calories and monitor nutrients such as iron and vitamin B12.