Having now actually read the article, I didn’t see the claim that it was the largest, so that may actually be made up.
But the article does make it clear that there was much more than seafood, with all sorts of animals including foxes, wolf cubs, snakes, hedgehogs, rats, frogs and palm civets.
My source for that was Wikipedia, which in turn cites this article in the South China Morning Post:
https://www.scmp.com/news/china/society/article/3047238/why-wild-animals-are-key-ingredient-chinas-coronavirus-outbreak
Having now actually read the article, I didn’t see the claim that it was the largest, so that may actually be made up.
But the article does make it clear that there was much more than seafood, with all sorts of animals including foxes, wolf cubs, snakes, hedgehogs, rats, frogs and palm civets.