Okay, before you get too freaked out, we're going to let you know it's not all candy we're talking about. While none of it could ever be classified as good for you, not all types of candy cause cancer. You'll just have to figure out if any of your favorites are cancer culprits. As you would know from just looking at candy, it's clearly unnatural coloring. All candies are dyed to give them their bright shades. Unfortunately, a lot of these dyes are extremely harmful carcinogens that will cause cancer.
Some dyes in particular should be avoided. These include Red 40, Yellow 5, and Yellow 6, which should be labeled clearly on packaging. They all contain a chemical known as benzidine, a carcinogenic compound. Try switching to candy made from natural dyes and sugars next time you have a craving for sweets.