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 certainly seem to think so. The chemical has been stirring up some controversy 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 plenty more.

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,” but 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. Guess I am done eating this crap

  2. Mentally Concise

    PDMS is also present in shampoos (as dimethicone makes hair shiny and slippery) and in heat-resistant tiles. Folks, who wish to avoid heart attacks make your arteries slippery by consuming PDMS and those who wish to suntan a lot, use a lot of it as well. Viva McDonalds!

  3. if you fed this stuff to your dog, couldn’t you be charged with animal cruelty?

  4. Tanya

    Dang and I though Wendys was the healthier choice!! ugh!!!!

  5. Dominique

    Is dimethicone the same chemical? Isn’t that what the active ingredient in anti colic medicine for babies? Ugh. I hate this world.

  6. John

    1. I’m not a fan of fast food. It’s generally unhealthy and not very enjoyable.
    2. formaldehyde occurs naturally in the human body. Just because it’s there doesn’t mean it’ll kill you. Jeff Roberts is trying to use bad science to scare everybody. I hate being manipulated. Don’t you? The important factor is the concentrations of the chemicals! Ten thousand water molecules in your lungs is welcome BUT ten cups would kill you. So, is water a poison? Water is also used to cut metal. Would you ingest something that’s used to cut metal? (You’ll see the same “logic” EVERYWHERE in this website).

    • - Collective Evolution

      Hmm, I don’t think think the important think is concentrations of the chemicals John! If there is any toxic, harmful chemical (that has been proven to be harmful to human health) it should not be used, even if they are trace amounts!

      Jeff is far from using bad science to scare everybody, he’s simply bringing more awareness to facts not many people know about. Polymeric compounds in our “food” isn’t right, wouldn’t you agree? At the end of the day, there is a lot of info out there. I know it’s been approved as safe for consumption, but at the same time there is evidence to suggest the counter!—siloxanes/ here’s one example of many.

      • WatersAChemcalToo

        Water is toxic. Seriously. You try and drink 10 gallons of it an see how you fair. (Read about it:

        By your argument, we should not use water.

        Hence, your argument is invalid.

    • Christopher

      Either way, we shouldn’t eat FAST FOOD! …EVER! YOU ARE WHAT YOU EAT, LITERALLY 😉

    • Really good comments John :)

    • John, I totally agree, thank you for articulating it so well.

  7. Dave Mowers

    Would it be “legal” for me to take toxic chemicals and insert them into sandwiches served to police officers? Politicians? Homosexuals? African Americans?

    What would happen to me if I intentionally poisoned people?


    • Biofriend

      But PMDS isn’t toxic. Seriously, it’s not just the FDA thats concluded that; there are hundreds of tests done by various agencies regarding the other uses of PMDS and none of them have found any link to it and any disease. Not only in humans but in wildlife as well. Just because a chemical has a big scary name and is used in non-organic products doesn’t make it somehow deadly to you.

      Shouldn’t you not be eating fast food for the simple fact that it’s not only unhealthy but also fairly expensive and not very good?

  8. Don’t eat at these places anymore, they obviously don’t care about our health, only their profits! Switch to Chipotle and other places that care about what they serve you!

    • COMALite J

      Just be sure to stock up on Chipotl-Away™, so you won’t have to keep buying new underwear.

  9. Sick of it

    First pink slime, now gray silly putty chemicals…it is criminal what is being done to our food.

  10. Thank you for this article. it was this proof that i needed to convince my friends not to eat fast food.

  11. Defiant

    When will activists learn the difference between correlation and causality? Just because a substance is used in something you wouldn’t eat…that doesn’t make that specific substance dangerous. There’s WATER in silly putty too…should we not consume water now?

    • Charles Waller

      Depends what else is in the water, eh? W.Va residents might have an opinion.

  12. It is getting more difficult to eat ANYTHING that doesn’t have something harmful in it, on it, or used to grow it anymore. Trying to find totally healthy food is like trying to find totally healthy air to breathe.

  13. second hand smoke

    I thought silly putty was an ingreident of computronium.Thats used in advertizing and warfare.Your not supposed to eat it.

  14. Remona

    None of that garbage is considered real food. That trash is what is killing people. If you want real food, grow it.

  15. Frank Barzaga

    Yummy, I want some of those Wendy’s fries in my tummy.

  16. Gary

    Sounds like you just want to target fast food. You could have made people aware that it’s also used in chocolate, gum, soft drinks, energy drinks. I also find interesting you chose the word “saturated” when describing chicken nuggets and fries at Mcdonalds do you have facts that these foods are saturated with this chemical.

  17. Don’t forget DHMO is in all foods. People ingest DHMO every day and nobody says a word about it. Thousands of people have died from inhaling it, world wide. It’s dumped into rivers and oceans every day. Not one single government entity will do a thing to stop it and nobody’s got the guts to take on the DHMO industrial complex.

  18. 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?)

    • 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…

      • Biofriend

        Yeah, and? You seem to lack the basic chemistry knowledge that just because something contains something dangerous, it doesn’t mean that the thing itself is dangerous. I mean think about this:

        Na, Sodium, is a gray metal that is so reactive that it will burn in oxygen and explode in water.

        Cl, chlorine, is a corrosive gas that was used as a weapon in WWI

        Combine them into an ionic compound, NaCl, Sodium Chloride, and you get table salt.

        Similarly, Phosphorous is an element so reactive that it glows in oxygen and is used as an incendiary weapon, but it is VITALLY important in your body. So much so that if I were to magically remove all the phosphorous from you right now, you would drop dead within seconds.

        Just because something can form formaldyhe or contains the molecule somewhere inside it, that doesn’t make it inherently dangerous.

        This is no different that that stupid ass panic that people got into when they found out that vaccines contained a molecule that had mercury in it. A molecule that did not release the mercury and had no effect on the body, but OH NO MERCURY! MY BABY SUDDENLY GOT AUTISM DESPITE THE FACT THAT IT’S IMPOSSIBLE FOR THAT TO HAPPEN!

      • 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.

      • 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 :)

      • 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 :

    • Dale

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

      • mitch

        That’s awesome

  19. 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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