That's why I linked to the Atlantic article and not to the (paywalled) journal article.
BTW, the title I originally used (per HN rules) was the actual title of the Atlantic article, namely Your gut bacteria want you to eat a cupcake. The mods changed it to the Atlantic posting's subtitle, which is certainly more informative.
Since headlines are often written by someone other than the article author, a subtitle (or the first sentence of the article) is often closer to the author's intent anyway.
Something like Factiva or EbscoHost, etc - but offering individual subscriptions (and not limited to just a single journal/publisher).
The other reply (no longer visible for some reason) mentioned the university library through the alumni association. I've gotten in touch with the library and received the following reply: "Due to licensing restrictions, we are unable to provide remote access to Research Port databases to alumni. Complete access to all of the Libraries' databases is still available through computers at any of our eight branches." . So it seems like the policy varies from university to university.
Haven't heard back from my local library yet - might stop by there tomorrow and find out.