I can't speak for the quality of Nitro-tech's protein but you can see analysis sheets on all the products at TP and Dante the owner is a great guy. It is definitely the highest quality protein and the best part is you can make custom mixes of different kinds of proteins to fit your needs and budget. I use 50% concentrate and 50% isolate cold-filtration with dutch chocolate fudge and it's awesome. You can also get plain protein so you can use it in cooking and stuff, and then buy flavor packs so you don't always have to eat the same flavor stuff. Go check it out trueprotein.com.