I think it is important to always get a mix of fat, protein and carbs... the ratios vary for each person and for activity level that day as well as womens monthly cycles, yearly cycles(winter in northern climates up protein and fat and summers can up carbs relative to individual needs) etc

Designs For Life and Mercola (mercola.com) have some good quality protein powders that IF any are going to work for you these two are prob near the top of the list in my opinion.

Great Lakes gelatin (www.greatlakesgelatin.com I think) is another way to get a slightly different mix of amino acids... how we got here in terms of our ancestors (and how I believe we are designed) is by eating much more of the animal than we typically do these days. Put a little in hot water, say with tea and you won't even taste. Make a mix to add to protein shakes, or home made sports drink. Make jello with it (some fruit juice, make thicker and put in fridge to harden) use unflavored "jello" to put in stirfries etc, it will just go to liquid and mix with sauce. Have a little in your daily drinking water. (has a slight taste that isn't great, a squeeze or dash of lemon juice - good for you anyway and tastes good - would cover it up.

This stuff is great!!!!! for joint care, cartilage, tendons soft tissue etc...

Of course you can make your own from bones etc from the meats you eat.

The quality of the meat is directly related to the quality of what it is fed as is the quality of protein powders related to what the cow is fed...