See this video by Dr John McDougall for example :
Also note that ostheoporosis is only one of many diseases that come with a high protein diet.
The super acidic condition that comes with eating way too much protein is also a big cancer promoter as well.
If you do not believe anybody here, then do what i do, I get my facts from nature. All the natural food that is provided by mother nature is perfect in every way, perfect tasting, perfect nutrient profiles which happens to be less than 10% protein in everything.
Thanks for the info everyone! :)