Science really says the opposite

I never bother with science research like this because i think there an ulterior motive from doing such research. Maybe the one who said chocolate affect face is funded by people who want to grab a market share from chocolate industry, while the one who said that chocolate have no effect is funded by the chocolate industry. I do eat chocolate, but i don't eat them too often, so i don't have to care about that research. There are many research today that i think related to industry and market share, so i think the best thing to do is not to bother about it too much and don't over-consume one type of food.

Sometimes a study's outcome can be affected by the parties funding it. If you're looking to sell products, sometimes you fund studies about them that will favorable influence buyers of the products to become more attached to those products and thus buy more. Or you might want a study to crush the competition. That's one reason there are studies to support any opinion.