In an online news site (or a regular newspaper), under its "Health" section, there are sometimes extremely dubious articles published. Some of them contain nutrition advice which poses a potential health risk to anyone who follows it. They might belong to the alternative medicine school at best.
As an example, a few months ago an article was published by a nutritionist advising readers to immediately stop consuming any and all dairy products. There were some (unreferenced, generally viewed as incorrect) reasons why this is important to do. The author also advised to consume calcium through deer horns and turtle shells because these apparently have a higher calcium absorption rate than dairy products1.
I'm not interested in opening a discussion on the contents of this article, but rather on what an individual can do to stop a newspaper from publishing potential health risking articles. To make the idea clearer, imagine an article which advises the readers to consume cyanide and suppose no one actually follows the advice, can a reader sue or file a complaint with a legal basis against publishing of such content? What laws should one look at?
In the case I gave above, I wrote to the editorial staff a complaint letter, but was completely ignored.
1 While it might be true, by taking the numbers supplied in the article itself I calculated that since dairy products contain more calcium overall, even with lower absorption rates the amount of calcium absorbed is many times greater.