yeah that's what i'm using. i wouldn't waste any precious part of a regular egg. but i read it can cause your body to be low on biotin. which i guess you can supplement with. but i also read your body only activates like half the protein when the egg whites aren't cooked. this was all forum talk though so i'm unsure what the actual truth is.
I have no idea what the deal is with the biotin absorption issue; I'll have to read into that as to whether it's true or not.
But, I am 99.9% sure that there is no difference between consuming raw or cooked eggs in regards to protein utilization. Proteins consist of a string of amino acids. When we consume protein, in any form, we have enzymes, acids, and mechanical digestion capabilities that break down the protein into the more usable amino acids. Cooking eggs, or any protein, will cause some denaturation of the protein, but there are four "levels" in a protein's structure. Cooking breaks down the fourth, third, and second level, leaving us at the final level, which is essentially just the amino acids. If you don't cook the egg, when you eat it, your body does the denaturation itself. Outside of rare medical disorders, I assure you, your body is more than capable of denaturing the living fuck out of proteins.
So, don't worry about eating raw eggs vs cooked eggs, either way, you'll get your protein.