Uh... there are many sources that cite problems with eating too much protein. Dehydration, kidney stress, calcium deficiency, heart disease, and other side-effects of increased fat or cholesterol levels of foods with large amounts of protein.

http://www.livestrong.com/article/468026-physiological-conse... http://breakingmuscle.com/nutrition/put-down-steak-youre-eat... http://www.medicinenet.com/script/main/art.asp?articlekey=50...