Are protein supplements derived from animal or plant sources?

Q: I am a 23 years old male and wish to use protein supplements. What is the source of protein and fat in supplements like Maxim HP manufactured by Dabur, Prosoyal and Soyal by FDC. Are they derived from animal source or plant source or both?

A:The source of protein would always be indicated on the box. The box would definitely be indicative. If derived from milk or soya, it would be vegetarian.