Will someone please tell me what’s in the new McNugget? For the love of the Hamburglar, I just cannot figure it out.

An allegedly improved version of America’s favorite lump of fried poultry debuted at some 140 McDonald’s restaurants in Oregon and southwestern Washington in March, a spokesperson for the company told Crain’s on Wednesday. The new nuggets, according to the company, “are made with a simpler recipe that parents can feel good about while keeping the same great taste they know and love.” According to Crain’s, the rest of the country will get to enjoy the crispy little pillows of mystery ahead of the Olympic Games in August.

But McDonald’s has not provided any specific details about the contents of this new, “cleaner” nugget. And in the post-Chipotlegate era, how can we be sure that “simpler” necessarily means “cleaner” — or even “healthier?” Grist embarked on an investigative journey.

The first clue: A McDonald’s in Portland, Ore., shared a photo of what is presumably the new nugget. But it hasn’t responded to my questions regarding what, exactly, is pictured here:

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It was time to go up the chain. I called the McDonald’s global corporate office multiple times. I left several messages with the McDonald’s U.S. corporate office. I sent an email. I even tweeted at the McDonald’s corporate account — no response, although the account tweets every few minutes at its loyal and vocal fans.

You’d think that McDonald’s, a company with a less-than-stellar transparency record, would jump at the chance to talk about the “cleaner” McNugget! But no one seems to want to tell me what makes this McNugget different than the old McNugget, and I’m certainly stumped. If you find out, I’d love to know.

UPDATE: McDonald’s got back to us! What’s in the McNugget? “100% white meat chicken, no artificial flavors or colors and our signature seasonings and crispy breading.  The Chicken McNuggets we are testing in Portland have no artificial preservatives.” Rest easy tonight, dear reader.