The main ingredients of protein are 5 types of plants which are Pumpkin, Rice, Sunflower,Pea and Soy.
https://static.wixstatic.com/media/ad4fec_eeae3c084c494a43a9bc716ef1364765~mv2.jpg
Yes, can eat it.
https://static.wixstatic.com/media/ad4fec_0f26c81149e444e4a8c486dbb6ce3755~mv2.jpg
It can be eaten from 6 years old and above. It is not harmful to health.