If anyone can find a sentence from the article that would make a more descriptive title, we can change it. This is one case where subtitles and the opening paragraph both fail us.
I changed the title to that, but I fear the term "hard science" here is provocative enough to spark a tedious flamewar, as if the topic weren't enough already. So if anyone can find a more neutral description in the article, we might change it again.
The URL does sometimes supply a good title. But in this case I fear it is too vague and baity. The distinctive thing in this article is the new efforts to test what makes us fat.
Edit: I suppose "New efforts to test what makes us fat" would be a reasonable title, but I hate to do that. It's nearly always possible to find a suitable title in the article itself.