Go to Google and look up "Johanna Budwig" you will find a lot of info about her work with Flaxseed oil/cottagecheese and prostate problems. The best overall information I found about her was at
http://www.healingcancernaturally.com/budwig_protocol.html
but there are a lot of other sites with information.

I HAD severe prostate problems until I started with the flaxseed oil and cottage cheese...a tip..if you start it..you should use a blender, it makes the oil more soluble and easier for your body to absorb. (and improves the flavor)

I also use Miracle-Mineral-Supplement (www.way2escape.com) but it is seemingly controversial but I have had wonderful results.

NOTE: I am just an American expat living in Moldova (former soviet union republic)
I am selling nothing..and have no monetary connection with the sites I mentioned..they are just the ones I happen to use.

This whole treatment was recommended to me by a friend of 20 years who is a Toxicologist and who has had amazing results with what I have described.