Does this really help fight the major diseases?

[aaronlloyd62]

Image: http://i23.photobucket.com/albums/b374/willbrink/BrinkZone_Radio_zps533ad05f.png (BrinkZone Radio Photo by willbrink | Photobucket) They are now claiming that Vitamin D3 is a cure for everything from cancer to heart disease to erectile dysfunction. Does this really help fight the major diseases?