I was taught at school that there were various proteins, and they were all different some good, some not so useful... they could build muscle or fat... and that there were proteins in vegetables... that a mixed diet was important..... TV shows and advertising have now told me that protein means meat or fish that all proteins are the same, and they are all great for you... and you need lots more protein added to all your normal food... they didn't say why... you know that none of that added protein comes from meat or fish... right?.... I'd check the ingredients carefully... if you are lucky, it comes from pea flour... but freeze-dried cockroaches made into flour are a really good source, too....