Evidence based medical information - GreenMedinfo
They have a lot of information - information- based mainly on PubMed papers
They use 'Cumulative Knowledge' to provide a weighting factors for each item
Meta-Analysis (20),
Human Study (10),
Human: Case Study (3),
Animal: Transgenic (2), Animal (2),
In Vitro (1), Review (1) and Commentary (1)
"GreenMedInfo.com began 3 years ago with a vision to provide the public free and convenient access to scientific evidence supporting natural healing methods. Our project has grown into the worlds largest free and entirely evidence-based natural medical database with over 15,000 articles, and growing daily. We are also unique in the sense that we are an entirely solar-powered database (no green-washing), have no advertisements, and have a volunteer staff which receive no compensation for their work." March 2011
Note: They ignore negative information/studies
Following tables are just the top of each - March 2011
Click on title to get to their full web page on that topic
Vitamin D

Vitamin K
By Therapeutic Action

By Natural Substance

By Ailment
