California lawmakers are considering banning the manufacture, sale, or distribution of foods containing five chemicals that have been linked to health problems and are already banned in Europe.

The legislation, known as AB 418, would theoretically ban a whole host of foods, from hard candies like Skittles and Hot Tamales, to Nesquik strawberry milk and many baked goods, breads and sodas.

But the lawmaker behind the legislation making national headlines says that’s far too simplistic and highly unlikely even if it passes.

Here’s what you need to know about what the legislation is trying to accomplish and how it could have broader impacts beyond California’s state line. 

The legislation

If AB 418 passes, California would be the first state in the nation to ban the following five chemicals from foods: 

  • Titanium dioxide, found in candies including Skittles and M&Ms, and some dairy products such as Kraft fat-free shredded cheddar cheese
  • Red dye No. 3, found in Hot Tamales, strawberry Nesquik, some baked goods
  • Potassium bromate, found in some white bread, flours and pizza dough
  • Brominated vegetable oil, used in citric sodas including Sun Drop 
  • Propyl paraben, found in various baked goods, trail mixes and tortillas

Last year, a California man sued Skittles manufacturer Mars, Inc., saying the candy is “unfit for human consumption” because it contains titanium dioxide.

The company responded by saying all its ingredients are safe and used in compliance with food safety regulators.

Titanium dioxide and the other four chemicals AB 418 is targeting are all banned from European foods, and Consumer Reports is seeking a blanket U.S. ban. Red dye No. 3 has been banned from cosmetics in the U.S. since 1990 after the Food and Drug Administration said that high doses of it had been found to cause cancer in animals.