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18 Most Sickening Food Ingredients

various-salad-dressing

Credit: Getty Images

16 of 20

Propylene glycol

What it is: This chemical is found in antifreeze, it’s true. But, says Milkowski, “it’s a very, very safe material.” In fact, it’s much safer than a kissing cousin, ethylene glycol, which is particularly toxic to dogs.

Propylene glycol has lubricating properties which aid in making spice concentrates, not to mention condoms. And if you need good mixing in food, this is your compound. “You’ll find things that don’t mix well in water do disperse well in propylene glycol,” says Milkowski.

Where you’ll find it: Sodas, salad dressing, and beer

Gross-out factor: Medium

Next: Cellulose

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