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. Pingback: What you want. | ad+VICE

  2. Pingback: Domino’s, McDonald’s, & Wendy’s Are All Feeding You A Chemical Used In Silly Putty - Magng

  3. Pingback: Domino’s, McDonald’s, & Wendy’s Are All Feeding You A Chemical Used In Silly Putty | Earth. We are one.

  4. Stewart Brend

    Does this apply to the UK as well or is it based on US research?

  5. SAJ

    The biggest mistake people make is in thinking the FDA is there to protect you. The FDA’s sole purpose is to ensure that no-one can make medical claims to their product. Period.

  6. royal winston

    I eat whole foods beans, quinoa spinach, brown rice, goat milk, coconut oil, all fruits, whole grains, sweet potatoes organic,alkaline water, less meat or grass fed. my number one rule be4 u purchase a product if u cannot pronounce it don’t eat it.

  7. I think if you were serious about your journalism, you’d spend a little more time on the chemistry/science behind the claims you’re making here. For example, formaldehyde is formed naturally in your body when you ingest tomatoes and certain citrus fruits/juices. Your body, in turn, is quite good at removing the very small amounts created. Using this as a scare tactic on an uninformed public does your blog a disservice.

    This reeks of Food Babe-type “activism”. You know, the blogger who falsely links aluminum-containing deodorants to disease yet sells a deodorant containing aluminum… the blogger who says compounds such as cyclopentasiloxane (sound familiar?) are dangerous–yet sells mascara containing cyclopentasiloxane?

    It’s easy to Google an ingredient followed by some dangerous word and write an article on the results. It’s much harder to UNDERSTAND the search results and present balanced information. That certainly was not done here.

  8. It seems to me that every time we turn around, there is another fast food restaurant or 2 or 3 in the news with ingredients that are not meant for human consumption. So you have 4 children and you go to one of these places for 10 years. Then little Johnny gets sick and the doctor diagnosis is cancer. You had put your trust in the FDA and all of these fast food establishments not to poison your family. Now what? A child is suffering and his family as well. As I said, “Now what?”

  9. John

    Oh so let’s feed it to people.

  10. as far as I’m concerned, the FDA are just another American company. but why trust an American company to regulate food and drugs for the entire world. kinda sounds funny really. why is this not U.N. run. just leaving it to a American company might open the chance for them to have a monopoly on all food and drugs across the world. :P

  11. Pingback: Domino’s, McDonald’s, & Wendy’s Are All Feeding You A Chemical Used In Silly Putty | In the Web of Life

  12. Mr truth

    Scare campaign! Dimethicone is very safe and will not turn to formaldehyde in cooking oil! Present the facts!

    • tommydamani

      The safest food is real food. I dare you to argue with my point

    • poo_bear

      And where did you get your degree in organic chemistry Mr truth? Dimethicone could very well produce formaldehyde and a whole host of toxic substances when subjected to high temperatures while cooking.

    • why would anyone in their right mind want to consume ANYTHING called… DIMETHICONE?????? I don’t care who calls it safe or anything else!!it is not grown in a garden!! Sad .. very sad.. you are defending chemicals for your natural body.

      • Someone Somewhere

        There are even bigger words in your tap water.

      • RFLatstone

        Probably for the same reason you ingest dihydrogen monoxide on a regular basis, despite the fact that it kills thousands of people every year.

    • RFLatstone

      If these people only knew how many “natural” foods contained dihydrogen monoxide – another chemical approved by the FDA and farmers spray it on crops!!

  13. Pingback: » December, 2014 – Five Bad Chemicals Found in Food

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