Domino’s, McDonald’s, & Wendy’s Are All Feeding You A Chemical Used In Silly Putty

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Polydimethylsiloxane, sounds tasty doesn’t it? Domino’s Pizza, McDonald’s, and Wendy’s think it is at least. The chemical has been stirring up some discussion recently due to its appearance in fast-food menu items. It belongs to a group of polymeric compounds commonly referred to as silicones, and applications of the chemical range from contact lenses and medical devices to shampoo and conditioners (making the hair shiny and slippery), caulking, heat resistant tiles, polishes, cosmetics, silly putty, and the list goes on.

Caulking (1)


The FDA approved chemical is classified as “non-toxic,” even though it is non-biodegradable and its commercial use in breast implants has decreased due to “safety concerns.” Under section 176.200, polydimethylsiloxane is listed as a defoaming agent which is an acceptable additive to food:

Sec. 176.200 Defoaming agents used in coatings.


The defoaming agents described in this section may be safely used as components of articles intended for use in producing, manufacturing, packing, processing, preparing, treating, packaging, transporting, or holding food, subject to the provisions of this section.(a) The defoaming agents are prepared as mixtures of substances described in paragraph (d) of this section.(b) The quantity of any substance employed in the formulation of defoaming agents does not exceed the amount reasonably required to accomplish the intended physical or technical effect in the defoaming agents or any limitation further provided.(c) Any substance employed in the production of defoaming agents and which is the subject of a regulation in parts 174, 175, 176, 177, 178 and 179.45 of this chapter conforms with any specification in such regulation.

(d) Substances employed in the formulation of defoaming agents include:

(1) Substances generally recognized as safe in food.

(2) Substances subject to prior sanction or approval for

Surprisingly, the FDA also approved formaldehyde as a preservative for anti-foaming agents. Formaldehyde is recognized as a carcinogen by the CDC.

images (12)20101201-wendysfries mcnugget

Domino’s Pizza lists the ingredient in their breadsticks, cheese bread, as well as in their “garlic butter oil,” commonly used on most of their pizzas.  McDonald’s lists polydimethylsiloxane as an additive in their cooking oils, meaning that their infamous McNuggets and french fries are saturated in the chemical.  Wendy’s Also uses the ingredient in their cooking oils. The FDA states that anti-foaming agents are “generally recognized as safe in food. ”The term “generally” is an elusive one at best. The question begs, why is the FDA approving food additives such as polydimethylsiloxane and formaldehyde when the substances frequently find industrial uses?




Material Data Safety sheets state that polydimethylsiloxane (or dimethicone for short) degrades to formaldehyde under higher temperatures, a concern due to the chemical’s use in fast-food cooking oils. Another MSDS revealed  dangers associated with fires/explosions and polydimethylsiloxane, which can generate formaldehyde as a by-product of oxidative thermal decomposition at temperatures greater than 150 degrees C.

In 2006, The Milkweed released a report in their monthly magazine which singled out Leprino Foods, the main manufacturer and supplier of cheese for Pizza Hut, as using polydimethylsiloxane as an anti-foaming agent for their cheese. Leprino sent a letter in response stating that they received the patent for using the chemical but that  “many practices are often claimed in patents, but are not utilized commercially.”


The use of polydimethylsiloxane provides yet another example of a “trusted” governing body letting the public down by the unethical regulation of our food. As time goes on I trust we will see more of the corruption behind the FDA being exposed. In the meantime, do yourself a favor and avoid the aforementioned fast food choices. It is clear there is a war being enacted on our health, and ultimately the only person who can save you is you.

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CE provides a space for free thinkers to explore and discuss new, alternative information and ideas. The goal? Question everything, think differently, spread love and live a joy filled life.

  1. Why does everybody gets scared about a chemical name? Did you know that dihydrogen monoxide is also on silly putty (lets see who gets it)? Also, polydimethylsiloxane is an organic compound, don’t people like organic things?

  2. and either of the ingredients in salt is deadly in the smallest amounts too, so what is your point??

    • Cody

      don’t waste our time

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  4. Wu

    U.S.A Best country for Fat and Cancers :)
    Guess Why…. ?

  5. Judas

    When you eat, you die and if you don’t eat, you’ll also die… so which is which? Just eat and be happy :)

    • i’ll eat ,MacDonalds, but i never did like the others. Wendy’s i tasteless, and i prefer papa johns. dominoes just doesn’t do it for me.

  6. Mev

    What’s with everyone going after McDonald’s!?! Like ALL THE TIME!

    • neil

      Did you not read the article? People go after McDonalds because the food is bad and unhealthy.

  7. Still loving it?

  8. Tom Anderson

    You will also find formaldehyde in decaffeinated coffee, if the coffee does not specifically state “naturally decaffeinated”. It’s how they take the caffeine out. Most restaurants serve decaf coffee that uses the formaldehyde process.

  9. simpson

    I just got off work and am going to go by McD’s on my way home and get a super size order of frys. Why, because they are yummy.

    • Cody

      somebody said the same thing when i shared this. of course they are yummy, open your eyes and do some research

    • that shit will cause you to die young. there are much healthier alternatives to McD’s!

  10. Spinach has nitrogen.

    Bombs have nitrogen.

    Your spinach could explode in your stomach.


    • Cody

      nitrogen is commonly found in nature, it makes up 70% of our air and it’s vital for life on earth. Polydimethylsiloxane isn’t found anywhere in nature, i briefly googled it.. this article is saying that Polydimethylsiloxane is only used industrially, so our bodies won’t know what to do with it and it will throw off some system, or cause cancer

      • Arteezy

        This is not how cancer works

      • Polydimethylsiloxane is compund made of Silica and Oxygen (both found in nature). So that makes it NATURAL. Now I would like to see the “sources” of this “article” Possibly food babe, dr oz or natural news. Nobody here seems to know basic chemistry.

  11. Polydimethylsiloxane, also known as simethicone, also known as Gas-X.

    • TDL

      Yes sir, thank you. It’s also used in countless cosmetic products. I also have yet to find research on the claim that it “degrades to formaldehyde under higher temperatures” Besides the one MDSS supplied, and the wording of that makes me think more like… the burning of the compound, rather than the “heating” of it. In which case when MANY things burn they create equally as damaging byproducts. Meh, I need more on that to decide.

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  13. mike

    The term generally means way more often than not. As in, way more people regard it as safe than don’t. Not that it’s “eh, safe enough we guess”

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  15. joanne

    Putting any kind of chemical in your body that ain,t food could affect you in the long run on a molecular level. Those guys never study things long enough. if you don’t get sick or drop dead in a week then they market it as safe.

  16. Hana

    My question is why would cheese have to be “de-foamed” in the first place???

    • Chris

      It’s for the oil to reduce splattering.

  17. So what’s the problem with using a food additive in Silly Putty?

    • Allen

      This is the best comment sir, thank you.

    • Cody

      Polydimethylsiloxane is only used industrially. it isn’t found in nature (to my knowledge), so it has no business in our bodies, nor will they know what to do with it. they might confuse Polydimethylsiloxane with another chemical found in nature, this commonly happens with estrogen, and it can mess your system up. companies like wendy’s, dominos, and mcdonalds will use anything they can slip past the FDA to make their food cheaper and faster, in a sense… you can’t rely on somebody else to care about your health, not when profit is involved

      • Elicia

        Kinda scary that you can also apply that theory to the field of medicine and/or healthcare. and you can…

        • Elicia

          And I think what they are saying is that these corporations paid the FDA to approve these ingredients, rather than slipping it past them which is ever scarier..

  18. Remona

    I don’t know about the rest of you, but I sure don’t want to eat Silly Putty. It’s a good thing I stopped eating the garbage from those places years ago.

    • I ate lots of silly putty as a kid and I truned out alritite.

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  20. Murray

    It is amazing what the body can do continuity healing it self, filtering out the majority of the harmful things in the food. to a point. but for how long. which chemical will have an defect and witch will not. well i dint know nether do you, so if it dos not kill quickly this dose not make it safe. there were no old roman solders the wine flasks were lined with lead. so wen you end up in the hospital the doctor will find something wrong and he will do what he knows to help you. what caused it well he only knows what went wrong not with particulate compound weakened you. for those of you whom believe all the stuff in the food is safe because a rich man said so, good luck with that. I would like to meet my grandchildren,


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  22. COMALite J

    Is there any known actual ill effect of this substance? Just because a chemical has industrial uses doesn’t mean it’s automatically harmful to health. After all, water is also used industrially, but try living without it.

    (Remember the DHMO thing from some years ago?)

    • Dale

      water is also used in nuclear reactors, and we let people use that in food?!?!

      • mitch

        That’s awesome

    • Paul

      Did you completely miss the part about it having formaldehyde in it?? Just one of the most toxic substances on earth that’s been linked to cancer, brain damage, auto-immune disorders, etc…

      • Dan

        it’s also produced by the body and is an essential chemical used by the body. “one of the most toxic substances” is actually made and used by the body, because, you know….. science.

        • Thank you. Something I bring up over and over: part of normal metabolism, but you don’t want too much. Like say, water, or salt.

          People need to stop with this Food Babe style food terrorism.

          • Wu

            your science sound like religious dogma, but you’ll say cancers are”normal”
            Reading all comments denying reality about U.S carcinogenic food and way of life make me understand why and how… Happy & lucky to live elsewhere :)

            Old U.S movie then to study :

      • pears have formaldehyde in them, apples have cyanide :/

        • Bill

          both occuring naturally.
          “organic” and “all natural” arnt totally true either. you wont really find one thing in your kitchen that is free of any type of chemical or additive. and these are micro-grams. a sneeze is more deadly than eating at a fast food place

          • Wu

            better eating apples without the 37 chemicals treatments :)

      • Steve Noel

        Dimethicone (Polydimethylsiloxane) can generate formaldehyde as a bi-product of oxidative thermal decomposition at temps greater than 150 degrees C. It’s not necessarily IN dimethicone, but dimethicone can create such if there’s even to be so much as a simple screw up with the temp in these fast food places. I’m there with you on that. Definitely the most important piece to take note of. Staying away from fast food for sure.

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