NEW YORK (TheStreet) -- Papa John's (PZZA) is the latest food brand to clean up its act and cut down on artificial ingredients as consumers become more health conscious.

The pizza-maker's announcement comes on the heels of General Mills (GIS), which said last week it was cutting artificial flavors and colors from its products. The sugary cereals brand follows in the footsteps of Chipotle (CMG), Subway and Gatorade which have all bowed to recent consumer demands to remove harmful additives from their products.

However, there are plenty more suspect ingredients lurking, which have been linked with multiple health issues when tested on animals. Despite being banned in Europe and other countries these ingredients are still being added to consumer products in the U.S. Here are the top offenders:

The artificial colors Red #40, Blue #1 &#2, Yellow #5 & #6 all originate from industrial materials and have been linked to a number of cancers and health issues. They can be found in sports drinks, soda, vitamin supplements, colored candy and boxed mac n' cheese.

Azodicarbonamide is used to bleach flour but is most commonly found in foamed plastics like yoga mats. It's been linked to respiratory problems and cancer but is still added to almost 500 U.S. food products like Hungry man dinners, Pillsbury dinner rolls and Stroehmann's breads

BHA and BHT are both potential carcinogens manufactured from petroleum. They're used to stop food turning rancid and are also added to products including some Kellogg's (K) cereals, Diamond nuts, Wrigleys, Trident and Bubble Yum gums.

Brominated Vegetable Oil or BVO is used to stop sodas and sports drinks from separating. It's made from the toxic chemical Bromine and has been linked to major organ system damage, birth defects and growth problems in animal tests. It's still used to manufacture mountain Dew, Squirt and Fresca among others.

Potassium Bromate or Brominated Flour increases the strength of dough, lowering baking times and decreasing production cost. American bread manufacturers say it disappears from bread products during baking but researchers have concluded it may be carcinogenic. The additive has been associated with kidney and nervous system disorders as well as stomach issues.

It remains in products like Baja Burrito Wraps, Jason Bread Crumbs and millennium energy bars. Even though small quantities may not be instantly harmful, so far the FDA has failed to take action against numerous problematic additives, leaving it up to consumers to check ingredients lists.

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