Eggs should always be cooked. I have studied this topic throughout college, etc. I will agree whole heartedly with Blown...
Eggs are essentially useless raw. The amino acids in eggs need to be heated to fully bond. Albumen in the urine is a general sign, as studies show that a significantly higher amount of malabsorbed protein (egg) was found in the urine of healthy individuals (1). Stable isotope techniques are used to determine the digestibility of raw eggs vs. cooked eggs. In another study, using this method, it was demonstrated that the assimilation of cooked egg protein is efficient, albeit incomplete, and that the true ileal digestibility of egg protein is significantly enhanced by heat-pretreatment (2). Heat-pretreatment of course being cooked.
Not to mention you have a 1 in 30,000 chance to get salmonella from a raw egg. Also, if you blend raw eggs or whatever, you can break up the chemical bonds of amino acids where as cooking them can hook the bonds together, which inevitably is the objective.
(1) Amount and fate of egg protein escaping assimilation in the small intestine of humans.
Evenepoel P, Claus D, Geypens B, Hiele M, Geboes K, Rutgeerts P, Ghoos Y. Department of Medicine, Division of Gastroenterology, Gastrointestinal Research Centre, University Hospital Leuven, B-3000 Louvain, Belgium.
(2) Digestibility of cooked and raw egg protein in humans as assessed by stable isotope techniques.
Evenepoel P, Geypens B, Luypaerts A, Hiele M, Ghoos Y, Rutgeerts P. Department of Medicine, Division of Gastroenterology and Gastrointestinal Research Centre, University Hospital Leuven, B-3000 Leuven, Belgium.