Smoking -> Caffeine -> Vegetarianism

100 years ago, the general public had no qualms against smoking. Olden day ads for smoking touted the health benefits of smoking.

Though I definitely don't feel that caffeine will receive the same stark scientific and medical revelations as tobacco smoking did, I am saying that there is definitely a reason for worry as to the effects of long-term usage of caffeine. Not to say that this is not going on already; nine of 24 sections in the Wikipedia article on caffeine are devoted to its negative side-effects. Caffeine is the world's most popular psychoactive drug. It is legal and unregulated in nearly every form and location.

But then again, in the Wikipedia article on vegetarianism, one of the ten main sections is entitled "5: Additional reasons for a vegetarian diet". Also, the only section which does not overtly praise vegetarianism for any reason is the first one which defines terminology and makes up roughly 1/8 of the entire article. This could either speak for the nature of Wikipedia, or for the nature of those who wrote the article.