So the question is the vegetarian diet lacking in necessary nutrients?i need to make a questionnaire on this t?

TOPIC : Is the vegetarian diet lacking in necessary nutrients
I need to come up with a questionnaire based on the topic listed above.So please give me questions that i could ask to different age groups based on the topic and in terms of health

There is nothing that comes from animals that you can’t get from a plant-based (or mineral) source.