Junk food in 2017 is an untamable monster, with three layer burgers and triple fried chips becoming standard fare in takeaway spots and restaurants.
But, according to a new study, you don't just need to worry about the mountains of salt on your food and tonne of sugar in sauces - the packaging is also bad for you.
The study conducted by researchers at Berkeley University in California assessed the fluorinated compounds in fast food packaging with worrying results. The paper wrapping and cardboard boxes which fast food is frequently served in are coated in a chemical which contains fluorinated compounds.
Packaging contains these compounds as their properties repel grease so the packaging doesn't become soggy. The downside is that these compounds or polyfluoroalkyl substances have, "been associated with cancer, developmental toxicity and immunotoxicity."
Just by containing the food, the compounds are absorbed into your meal, more so if the food remains the packaging for a long time. Meaning you might need to rethink your codependent relationship with Deliveroo.
The study tested 400 different samples of food packaging in America with different materials including paper and cardboard. They found 46 per cent of paper wrapping and 20 per cent of cardboard containers contained detectable fluorine compounds. The findings extended beyond traditional junk food culprits too, 56 per cent of dessert and bread wrappers and 38 per cent of sandwich and burger wrappers detected the compounds..
In more cheerful news, 0% of paper cups contained the fluorine compounds, so chug away on that H2O champ.