Using Actual Egg Whites as lubricant?

I've read online where some people used actual egg whites as lubricants while they are trying to conceive. I read that the actual egg whites mimic cervical egg white mucus cause the sperm to travel better and fertilize the egg.

I want to know if this is true and sanitary? Is there any other FDA tested and approved lubricant that aides cervical mucus?

Here are a two links that talk about using actual egg whites as a lubricant.

http://www.tryingtoconceive.com/eggwhites.htm

http://myinfertilityblog.wordpress.com/2007/09/15/egg-whites-as-lubricant/