Analysis reveals which fast food chains have the highest number of chemicals lurking in them READ MORE: Researchers compare US vs EU versions of popular snacks By Alexa Lardieri U.S. Deputy Health Editor Dailymail.

Com Published: 08:16 EDT, 13 July 2024 | Updated: 08:19 EDT, 13 July 2024 e-mail 23 shares 28 View comments When it comes to your health, research is beginning to show it's more complicated than calories in vs calories out. Increasingly, scientists are learning that how much ultra-processed food someone eats has a bigger impact on w hether they'll be diagnosed with a disease or die young than previously thought. There is still some debate around what is defined as 'ultra processed' - considered the most dangerous - and simply 'processed,' but many doctors advise sticking to foods that has fewer than five ingredients .

With this in mind, DailyMail.com has analyzed the ingredients lists of nine of the most-loved fast food items from chains across the US. It reveals that, despite the calories being comparable with some of Americans' guiltiest guilty pleasures, like chocolate or sweet treats, there are huge differences in the number of ingredients - between one and more than 60.

For comparison, a Hershey's milk chocolate bar has eight ingredients, while Twizzlers candies have about a dozen ingredients. And it's not just the amount of ingredients, many of them are dangerous. Common among the long list are substances like dextrose, MSG, silicon dioxide and calcium peroxid.