The Food and Drug Administration’s first broad testing of food for a worrisome class of nonstick, stain-resistant industrial compounds found substantial levels in some grocery store meats and seafood and in off-the-shelf chocolate cake, according to unreleased findings FDA researchers presented at a scientific conference in Europe.

The FDA’s disclosure is likely to add to concerns raised by states and public health groups that President Donald Trump’s administration is not acting fast enough or firmly enough to start regulating the manmade compounds, called “forever chemicals.” A federal toxicology report last year cited consistent associations between very high levels of the industrial compounds in peoples’ blood and health risks but said there was not enough evidence to prove the compounds as the cause.

The levels in nearly half of the meat and fish tested were double or more the only currently existing federal advisory level for any kind of the widely used manmade compounds, which are called per- and polyfluoroalykyl substances, or PFAS.