nolimitsfitness

I am a personal trainer and bodybuilder that is not vegan. I understand fully the health benefits that veganism can bring. My question is regarding carbs I have a client that just had a baby and is trying to get in shape. Her weight is dropping steadily and jshe is making good prpgress. But now she is insisting on be vegan (moral decision). I understand her feelings, my only concern is the amount of carbs that she would be getting. I have gone through every nutrition program on this and other websites and it seems like the only way to get the needed protein requirements, is to consume foods that are also high in carbs. She wants her main sources of protein to be nuts, vegetables, etc. I would really like to hear someone's opinion of this subject. Thanks for your help