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Science Diet Acquires Patent to Use Polyethylene

by Ryan on October 5, 2012

in Pet Health

Science Diet has recently acquired a patent to use polyethylene in their products.  The purpose is to extend the shelf life of their products.  Polyethylene is a common plastic that is widely used to create plastic bottles, plastic bags, plastic films, and many more products.  Using this plastic in food could be dangerous for you and your pets.  Many people are not aware of the potential side effects.  It is possible that polyethylene products can cause cancer.  PetsitUSA will keep you updated with news on these products, but you may want to consider avoiding these products, especially reusing plastic bottles.


Update:  You can find more information on the low-density polyethylene at http://www.medicinenet.com/plastic/page4.htm.  

Update #2:  You can find information about the patent at the following link: http://patft.uspto.gov.

{ 65 comments… read them below or add one }

Herb Neu October 10, 2012 at 9:39 am

This is a terrible development. Science Diet’s ingredients are no better than big box store pet foods, but because veterinarians endorse it, thanks to huge incentives from Hills, people are led to believe that it’s worth paying a higher price and that their pets are benefitting from the product. It won’t be long before plastics will be used in processed human foods. What has become of morality and ethics? The new “god” seems to be money and power.


Joe Squirrel October 17, 2012 at 10:59 am

It won’t be long? Go find a fact sheet of what is in Chicken McNuggets….LOL…We’ve been eating plastic for years and years in tons of products.


Elisa November 14, 2012 at 12:09 am

I am a veterinarian who has furthered my knowledge on nutrition beyond what we are spoon fed by the pet food companies in veterinary school and I do not endorse Hill’s.


Kim November 24, 2012 at 2:45 am

Thank you for doing so. So many veterinarians just don’t and it’s not a good thing at all, so again, thank you for taking the time and effort to help our best friends.


Tammy December 26, 2012 at 11:38 pm

What would you endorse for a 11 month old puppy with food allergies? I have my boxer girl on Hill’s prescription diet Z/D Ultra Allergen and as I’m finding out Science Diet wants to put plastic in their food- I feel lost. Because she is so young I only have ruled out a few things she is allergic to. Any suggestions would help.


Brianne April 26, 2013 at 2:22 pm

Hi Tammy,
My boy was only 3 months when we ran into his allergy problems. For him it was grains! We can’t even bathe him with oatmeal shampoos! We put him on a limited ingredient diet, such as Natural Balance, or Nature’s Variety for examples. We now feed raw diet, he looks amazing and is free from his allergies! Make sure to watch out for those treats as well. Single ingredient treats are a good way to go!


L Evridge October 10, 2012 at 3:24 pm

way to go science diet! anything to make a buck!!!!!!!!!!!!!!!! Our pets deserve better, would you feed that to your children? !!!!!!!!!


CJB October 10, 2012 at 7:13 pm

The problem is that YES they would feed that to their children. Have you seen what is the ingredients in human food?? Have you looked up what some of those thing are that are unpronounceable?


Dorothy Plummer October 10, 2012 at 6:50 pm

What a foolish move and an easy way to ruin your reputation. I shall see what my vet thinks is my dogs special diet in ruin I think so


KIM CRUDO October 19, 2012 at 11:50 am

I just posed that questin on my Vet’s fb page. Of course they sell the Rx version of Science Diet it so they may never answer me….But, I have an appointment coming up.


Deb October 11, 2012 at 11:42 am

Although I disagree with using polyethylene as an additive, there is a HUGE difference between polyethylene glycol (a high-density polyethylene or HDPE) and polyethylene terephthalate (PET) to which you have a link to. Polyethylene glycol is used in several medications, foods and hair products. PET uses ethylene glycol which is very toxic. Propylene glycol is very safe in small quantities.

The different poly(ethylenes) are made from the monomer ethylene (H2C=CH2). The repeat unit of the polymer is:
Low denstity poly(ethylene) (LDPE) and high density poly(ethylene) (HDPE) are chemically identical. They differ in how they are prepared. LDPE is prepared under very high pressures and temperatures with free radical initiators. This results in a highly branched polymer that is amorphous (no crystalline content). HDPE is made using transition metal catalysts and is perfectly linear, resulting in a polymer that has very high crystalline content. This crystalline content gives HDPE more toughness and higher density than LDPE.

PET is a completely different animal. It is formed by the acid catalyzed transesterification reaction between ethylene glycol (HOCH2CH2OH) and dimethyl terephthalate (H3CO2CC6H4CO2CH3). The products are methanol and the polymer poly(ethylene terephthalate):

PET is a polyester, it has no relationship with HDPE at all. I think what is confusing you is the term “ethylene” that appears in the names of both polymers. For HDPE, “ethylene” refers to the ethylene monomer, but for PET, “ethylene” refers to the ethylene glycol portion of the repeat unit.


Rosemary Levesque October 11, 2012 at 10:09 pm

Why would ANY plastic be considered “ok” in food. Though some may say that in small amounts, this chemical or that one may be “ok”, I truly believe that with an accumulation of such chemicals we see a Body Burden. Where a little might be fine, too many small amounts add up. For our pets and for our children this can spell disaster, not just for this generation, but also for the next. Chemicals interfere with everything from fertility to nerve function and beyond. No plastics for me and mine, thanks. I avoid contaminants as much as possible. The risk is too great in a world of convenience and toxins already present in “ok” small amounts.


Lynn Morgan October 19, 2012 at 10:54 am


Maybe you want to dumb that down a bit. I get it, people who take meds everyday eat plastic. I also know that methanol is toxic. Free radicals are not good either. I love the “safe in small quantities”. Look, you probably should not be eating plastic, period. If I can avoid feeding it to my dog, I am going to. Shame on Science Diet for putting it in their food.


Mary V. Shaw October 20, 2012 at 5:28 pm

Thank you, Deb. those of us who paid attention in high school chemistry have the ability to understand modern technology and how it impacts our daily lives. For those ready to push the hysteria buttons, maybe you should go take an evening. Purse or something.


Trish October 24, 2012 at 11:59 pm

Love the scientific “excuse” where it is really a moral issue on health. Just because you can…doesn’t mean you should. And…those studies do not cover when it comes from multiple sources over a period of time…they never cover that do they? And how would it react with the chemicals in the bag they now use that also “extend shelf life”? Just sayin…


brit November 2, 2012 at 11:14 am

It is not hysteria to not want to feed plastic to dogs. Modern technology does not belong in their food, they are innocent animals relying on humans to feed them the right food, not garbage with a longer life because it has plastic added to it! God provided everything we need to nourish our bodies and for animals to exist on, He did not design us or them to use artificial foods,


Dana Que October 11, 2012 at 9:03 pm

Regardless of which plastic it is, I’m going to feed my dogs actual FOOD, not food with added plastic. I think that makes sense. Putting in plastic so that unfresh food won’t rot while on the shelves? Not for my pets.


djw October 15, 2012 at 9:12 am

You are absolutely right Dana. Feeding REAL food is the only answer. Dogs have been around for thousands of years. Commercial pet food has been around for a fraction of that time. The argument for commercial pet food is that it is manuifactured so as to provide the optimum balance of nutrition and that is why dogs are living longer. Dogs may be living longer but I believe it has nothing to do with commercial pet food. It’s because our dogs are pampered. They’re sleeping in our beds and not under the front porch. They’re protected by fenced in yards, not running the neighborhoods like they used to. As a matter off fact, the dogs I see might be living longer but they suffer from numerous medical issues that you never saw in the past. Why are we seeing diabetes in dogs that have been fed commercial dog food their whole lives? Why do so many dogs suffer from allergies? Cancer? Granted there are other contributing factors such as vaccinations, genetics and the environment but I believe that the dog food contributes greatly to the ailments that plague our pets today. JMO.


Herb Neu October 16, 2012 at 8:15 am

Very good post.


Karen October 16, 2012 at 1:36 pm

Nicely said, djw!


Sarah Potts October 16, 2012 at 3:44 pm

Heck yeah, it is the vaccines to blame! Down with medicine! Bring back pre-penicillin days! To heck with progress! They MUST be getting sick from commercialized medicine. It couldn’t possibly be that we recognize diseases in pets now that no one knew to look for before! Joe just always had an itchy dog, but allergies? What dog gets allergies?

I don’t vaccinate my children either because of evil medicine and advances. I think it would be fine if they die an early death from preventable childhood diseases like measles because I know that I know in my heart that I am doing what is right by them. I don’t any weird foreign stuff in them, only good old natural mother earth. Hey cool, I just found out that belladonna and arsenic are “natural”!

Oh let’s link some completely different toxin to this page! That will scare people into believing our rhetoric and boycotting this company. What was it? Swiffer Wet Jet? Purina? Hill’s? Johnson & Johnson? I forget who it is today. Not that it matters. I think a few thousand have been swayed already! Woo Hoo!

Any legitimate concern, which may be valid, is obliterated by scare tactics and hyperbole. I love how the comments go right in line with these. So hard to get a reasonable discussion going when dealing with the vast majority of people on the internet. Reminds me of how scary this world really is because of the masses out there.


Mark October 18, 2012 at 3:05 pm

Bang-on right, Sarah. Thank you.


Cat October 19, 2012 at 2:03 am

So right. Great post!


tiffany vernon October 21, 2012 at 9:48 am

Wow. That was an extremely dramatic response. OVER vaccination is a problem in animals. In addition, vaccinations in general are highly toxic and can be fatal or cause many long term problems. They are a great advance but still have a long way to go, as with with many, the benefits do not outweight the risks. You may prevent hep b, but trade for Lupus. Its a tough call…


Cheryl Brown October 20, 2012 at 10:35 pm

I believe the human food contributes greatly to the ailments that plague our people today, too…many of the same ailments you mention plaguing our pets.


ANIMAL & PET SUPPORT GROUP October 14, 2012 at 12:16 am

Hey Ryan & PetSitUSA,

Readers on our page (even ourselves) are users of this product. Could you please give us a url to the source of this story or a page where you got it from yourself.

Please feel welcome to come to our page and comment.

Warm Regards,
Animal & pet Support Group


Smitten Smitty October 14, 2012 at 12:18 am

Corporations dont care for human lives, and even less about our animals. This world has gone to hell all for the chase of a dollar


Herb Neu October 16, 2012 at 8:22 am

Agreed. With lack of enforceable regulations, “free market” has become a free-for-all economy. Our elected representatives, local, state, judicial and federal, for the most part have been bought and sold by powerful special interests. “Industrial” food producers need to be held more accountable and this is not happening in our country.


Herb Neu October 14, 2012 at 7:16 am

The pet food industry is scandalous many ways. The addition of plastics is simply another filler, like corn, brewers rice, beet pulp, animal digest (a.k.a. fecal matter, rendered euthanized dogs/cats, including the chemicals that killed them). And most pet caregivers will blindly trust the brands because they have such cute names and advertising. Many lower priced brands include fructose, sawdust and cancer causing preservatives. Of course, processed foods for human consumption is also fraught with unhealthy ingredients. It is very sad that we are generally “in the dark” about the foods we consume. No doubt, plastics will soon be in people foods.


Josie Smith October 14, 2012 at 11:26 pm

“No doubt, plastics will soon be in people foods.”
How do we know that they aren’t? Look at all the GMO stuff we are eating without knowing it. How is this any different?


PG October 15, 2012 at 1:38 am

I don’t understand why they want to add this when they already use Vitamin E as a preservative and in my opinion the food has a good shelf life. I will continue to watch the bags for a change of ingredient. And in response to the comment by Herb about Hills giving Vets huge incentives, that simply is not true.


Allison October 15, 2012 at 5:00 pm

Hi all, I work for Hill’s and I’d like to clarify a couple things –
Hill’s does not add plastic to any of our pet foods and has no plans to do so. For any company that invests in research and innovation, it simply is common in a patent application to include broad descriptions of ingredients, technology or processes – even those that will not be used.
We ARE reformulating our Science Diet® foods to contain animal proteins such as chicken, chicken meal, fish meal as the first ingredient, and more natural ingredients with no chicken by-products, artificial colors or flavors because we are committed to the lifelong health of our animals. http://www.hillspet.com/our-company/science-diet-new-recipe-new-packaging-more-natural-ingredients.html


Herb Neu October 16, 2012 at 7:58 am

I am relieved to hear that Hill’s will not be adding plastics to it’s dog foods. It would be great if you also stopped using corn and other hard-to-digest and non-nutritional fillers and rendered ingredients. Recently there has been a Youtube video showing a competitor’s approach to testing its product on dogs which were obviously very ill as a result, and which were being mistreated. Hopefully, Hills does not do this. But I will say without hesitation that up until your recent post, that of your many formulas that are sold in pet supply stores, most had as their first ingredient, corn, soy, brewers rice and worse. And in all likelihood they are Monsanto or Dow GMOs which scientists are now saying are harmful to humans and animals. Many countries actually ban genetically modified crops because of this, but not in the U.S. Most veterinarians are not up to speed concerning pet nutrition because it’s not stressed in veterinary schools, other than a few hours and that much of the information they do receive comes from pet food manufacturers that have a vested interest in their brands. AAFCO Approved ingredients are basically a joke, which is why so many brands are allowed to say “Clinically Proven.” Unaware, trusting consumers think this is a good thing. Before I began researching pet food ingredients for several years now, many of my pets (I am a former animal rescuer) died early due to tumors and renal problems. Now that I make my own dog/cat foods using raw or poached ingredients and vegetables, my pets live to be 15 or more years old and enjoy a much better quality of life in their old age. One more thing. Pet foods need not be as high priced as they are today—often costing more than human foods. This, in my opinion, is another marketing ploy. Most of the prices of pet foods (and human foods) are for not only huge profit, but for intensive marketing/advertising/promotional efforts.


Penny October 15, 2012 at 6:29 pm

Science Diet put in for this patent over 10 yrs ago. They have several patents that they are NOT using, this patent is NOT going to be put into use either. They will continue to use the Natural preservatives currently being used in their foods at the present time. So ….. All to do about Nothing!


Herb Neu October 16, 2012 at 8:27 am

At least for the present time.


Victoria October 16, 2012 at 9:57 am

Why would a company apply for one or multiple patents unless they were planning on using them at some point?


Ginny Kerr October 16, 2012 at 10:26 am

Does anyone have decent recipes for homemade food for dogs and cats? I have looked into raw, but my understanding is that you have to add vitamins etc. I’m not a hugely technically minded person, but I am sick of the dog food issues that plague the industry. Any decent pet food rep can convince you to trust only their food, but I know that they are doing what they do to earn a living, and the companies who employ them are doing what they do for profits. I think it’s time I take more control of what my pets eat.


Herb Neu October 16, 2012 at 10:49 pm

One of the best sites on the internet is http://www.celestialpets.com/ for highly nutritious raw food recipes. You might want to have a look at it. Celeste Yarnall is a widely respected authority on dog and cat nutrition. She also has some books on the subject. In my opinion this website has the best answers to your question.


Rosemary Levesque October 17, 2012 at 9:33 pm

Ginny, I have been making my own dog’s meals for years and have been teaching others to do so too. The results have been phenomenal. I start with good quality raw meat (ground), but not from the grocery store. That meat is meant to be cooked for humans and may be too high in bacteria. I add ground vegetables and specific supplements (I like the food fortifier from Nature’s Logic). There’s more, but it’s very simple once you know. Please take a look at my site for more info. I don’t sell the food, but enjoy the results when my clients follow along. http://www.rosemaryssolutions.com/dog-food.html


Stephanie October 19, 2012 at 4:28 pm

Please, please do not feed your animals a raw food diet. Feeding animals raw meat can make them sick just like feeding humans can make them sick. True, dogs used to live off of raw meat thousands of years ago. BUT, like someone said earlier, dogs have changed and their intestinal system cannot handle raw meat. I work in the emergency veterinary field and so often I see people try to feed their animals raw food or even their own cooked meat and food and their animals come in very, very very sick. Sometimes they die. I feed my dogs Hill’s Science Diet and they have done enough wonderful research that they know what to feed a dog. They have veterinarians on staff and PhD’s and all sorts of wonderful team members. They only have the best interest for our animals.


Herb Neu October 19, 2012 at 5:32 pm

Stephanie, there are plenty of informed holistic veterinarians and pet nutrition experts that would disagree with your plea. And there are many excellent and completely safe recipes to support them. I certainly would not use Walmart’s or any other big box store’s meats. However, raw organically raised poultry, for example, mixed in with the proper ingredients, including vegetables, flora enzymes as well as certain supplements can provide far greater benefits than any kind of kibble or canned food. I use both holistic Fromm foods, organic canned foods and organic raw foods (including vegetables) for my pets and they are very healthy, active and happy. I have never had a problem. They are fed once-daily. They have compact stools and we’ve never had a case of loose stools. I also do not use Frontline or any other pesticide to control fleas. Instead I use a couple of tablespoons of white or cider vinegar in their drinking water, and bath regularly with a weak solution of Neem mixed with vinegar mixed with Dr. Bonner pure shampoo for bathing and we haven’t had flea or tick problems for several years despite the fact that we live in a rural farm area in the south. To each his own, I guess. As I mentioned earlier, there are some very fine sites on the Internet that are also very responsible in providing good information about raw food recipes. You can start by using Google and do a search on Dog Food Nutrition. You’ll get a lot of sites that are owned by companies such as Purina, Mars, Nestle, Iams and their ilk, but you will also find some completely objective, fact-based site, too. Wikipedia may also be a good resource to begin with.


Stephanie October 19, 2012 at 6:28 pm

I don’t know ANY veterinarian that would tell you to put vinegar in a pet’s water. Please go to the Animal Poison Control Center Website and look up vinegar, and they will tell you it is an acid…a poison, something that if your dog ingests, he should see a veterinarian. Also, Please look up the recent public announcement by the American Animal Hospital Association and the American Veterinary Medical Association Denouncing Raw Food Diets. These websites are scientific, research-based sources…unlike Wikipedia. Anybody can go on wikipedia, including yourself and edit any of the information on raw diets. You have made some profound statements about a veterinarian’s knowledge on pet’s nutrition. Some of these veterinarian’s spend 2-4 extra years on top of their 8 years of graduate schooling JUST studying nutrition to get a specialty in nutrition to design these special dog foods such as Hill’s Science Diet. This is why I trust Hill’s. What is your educational background to make these statements? Why should I trust your statements?


Herb Neu October 19, 2012 at 10:07 pm

I can only go with what other veterinarians have told me and shown me. Vinegar in quantities I’m sure isn’t good for anyone or anything, however, it has been used for centuries as remedial mixtures. It certainly causes less harm than pesticides applied to through the skins of animals. I have seen many bad reactions to them including a few of our former foster pets. I respect veterinarians as I do MDs, however, I also equate the animal “industry” as I do some of big pharma. Sure, I take prescriptions once in awhile, yet I also consume raw veggies, fresh juices and avoid GMOs, and so do my four dogs. You can only trust your opinions. I think you will find information from reputable experts who will tell you that items like Advantage, Frontline and others will often result in serious problems down the road. I do not have time to send you links, but if you Google around you will probably stumble into some outstanding sites from the experts in holistic veterinary medicines. And as you said, “some” of these veterinarians spend 2-4 extra years studying nutrition. I can only say, based on my personal knowledge and friendship with many vets, that these men and women are in the minority of the profession. You must have missed where I said “small amounts.” Two tablespoons in a gallon of water will certainly not hurt and does not hurt my animals, and I save lots of money on not having to buy “vet-approved” pesticides that have harsh warnings on the labels and without a doubt can cause egregious damage to the animals when used regularly over the course of their lives. Neem oil is also effective in controlling fleas and skin conditions when used properly. I also use food grade diatomaceous earth for my pets’ bedding and wherever else fleas might have an opportunity to congregate. And I use vinegar, concentrated, which is an effective way to control weeds as an alternative to Monsanto’s Roundup, which is causing environmental havoc wherever it is not banned. So that’s about all I have to say about it.

JR October 16, 2012 at 4:23 pm

Herb – why this diatribe against corn? If you don’t like it, use something else. For us, though, corn-based kibbles are the only kibbles my dog CAN eat! If you don’t like it, feed something else – there are TONS of foods out there that use rice and its ilk. I cannot find many dog foods with corn anymore, all because people jumped on a bandwagon, so this vendetta against corn in dog food is killing us. My dog cannot even eat home cooked or raw diets – he can only digest highly processed foods, mainly ones w/corn and that are very low fat and low fiber. He CANNOT eat oats or rice or pea products!!

Please, please Hills, do not remove all the corn and leave us with rice products like all the other band-wagon companies are doing. MY DOG CANNOT EAT RICE OR RICE PRODUCTS!!! (Or much of anything else… but he CAN eat your current formula of food.)



Herb Neu October 16, 2012 at 10:57 pm

If you look into the benefits of corn, there are very few. It is a low cost filler product that is not all that digestible, whereas rice, if it’s not brewers rice, is a very digestible grain. But that’s your opinion. Unfortunately, your dog probably is not receiving enough protein. Many dog food brands contain a lot of soy (GMO soy), which goes in one end and out the other and does nothing for you pet. It is a fake protein used to make you think the food has a higher level of protein that it actually has. At all times, meat (not meat byproducts) such as chicken, lamb, turkey, etc. should be the first ingredient in all pet foods. Sadly, this is not the case, particularly with supermarket brands, many of which come from countries other than the U.S. Bottom line, however, is that dogs are carnivores and dry or canned foods do not measure up to the real deal. There are plenty of unbiased sites on the Internet that provide consumer ratings for dog and cat foods, but be sure they are not disguises for pet food manufacturers to tout their particular brands. Check it out.


Kim November 24, 2012 at 3:00 am

Actually, vinegar is incredibly GOOD for both animals and humans. Look please look up the benefits of Apple Cider Vinegar (ACV). Cardiologists often place their patients on a diet including ACV, in larger quantities (2-4 Tablespoons per day) to reduce cholesterol, it also has many vitamins in it. How do I know this you ask? because both my sister and grandmother work for them, my father is a patient , not of either of their doc’s but a VA patient and his doc at the VA put him on it in addition to proper diet (real food, not diet food), and exercise regimen.

I’d say that qualifies.


Nik March 1, 2013 at 4:00 am

Dogs are not carnivores, cats are. Dogs are Omnivores.


Matt Tucker October 16, 2012 at 11:54 pm

Soda bottles, plastic peanut butter containers, practically every food you eat has come in contact with this product. Variants of plastics are linked with cancer but is this one? It seems to me that the answer is no. Did any of you think past the fear mongering? It may be that you are feeding this to your kids. If they save a buck by improving shelf life does this make food cheaper so you can feed a higher quality diet? With fuel costs rising to the insane, maybe we all need to consider the value of safe food for a few months longer than we had it before. I think hills is a great company and get absolutely no kick-back or support from them other than answers to medical problems best treated by diet. Did you know there may be corn in science diet? Oh dear!!!!


Katy the vet October 17, 2012 at 1:41 am

As a veterinarian, I’m wondering where these kickbacks from Hills are, as I’ve never had any and I’ve been practising ten years. I must be due one heck of a windfall!

Veterinarians promote Hills because they are free to recommend whichever food they choose and many choose Hills.

I believe allergies come from feeding indigestible fillers to dogs, such as wheat, which is far more common in food than corn or rice. Many dogs do seem to have allergies to wheat. Strangely though many dog breeders wean puppies onto wheat or cereal products (usually human breakfast cereals), I can’t understand why since I’ve never seen a mommy dog fixing a bowl of cheerios for her puppies !!

Feed the best quality food you can afford. I prefer Orijen because there are no grains at all, just meat and vegetables, so a much more ‘biologically appropriate’ diet. (Likewise Acana). But if you can’t afford it, Then you need to think carefully about what you do choose.

Break the mold Americans! READ the packaging. The ingredients are listed!!! If you wouldn’t eat it yourself, or you don’t know what the ingredient is, then put the bag down and find something that you do think is going to be good.


Rosemary Levesque October 17, 2012 at 9:36 pm

I agree, Katy. However, ingredients can be confusing to some people, especially when some of the ingredients are actually good (like antioxidants) but the benefits are lost in cooking or the quantity is minimal. It always bugged me that in the guaranteed analysis the manufacturer would not include % carbohydrate. That was critical when my dog became diabetic. That’s why I went to a raw diet. It works! Yes! Break the mold. I’m with you there.


JR October 17, 2012 at 5:48 am

Herb – I’ve studied canine nutrition, and I’ve worked on diets of hundreds of dogs coming through my rescue group. I understand your points and would also prefer to feed my dog other stuff because it would make *me* feel better. But it doesn’t make *the dog* feel better. So don’t advocate away the only things my dog CAN eat.

Your other points: First, that it’s my opinion that my dog doesn’t do well on rice products – those are not my opinions, those are fact. Rice? Diarrhea. Corn? Fine.I dont’ need more proof than that.

As for your statement that unfortunately, my dog is not getting enough protein – you just cannot diagnose that. His dietician and vet feel he’s doing well, and I respect their opinions and my own eyes more than yours. To top it off, he’s a working dog, not some quiet pet dog. He puts out more energy in 15 minutes than most dogs do in 24 hrs. He’s doing very well on his corn-based kibble. That’s fact. I don’t care for it because it feels wrong, but that’s how it is.

So don’t take away the only thing he can eat through blind advocacy.


Estelle Dahl October 17, 2012 at 1:12 pm

Those of us who have a dog affected by CAH, a genetically based liver condition, depend on SD for our prescription hepatic food, along with prescription Royal Canin. Those are the only two companies that serve the special needs of our dogs whose liver cannot process copper and who must eat a basically vegetarian diet. And, yes, the ingredients seem awful, but after a year, I must say my dog’s energy level is as high as ever, and she looks good, too, in spite of having a serious liver problem.


Rosemary Levesque October 17, 2012 at 9:40 pm

Estelle, If your dog’s diet is compromised because of liver issues, it is likely very important to detoxify. Most of my clients (doggy and human) have toxicity that is able to be measured and reduced with the protocol I offer. In the end, always do what is best for your dog and monitor with your vet’s help. However, detox is so critical to many health issues. I have a feeling you’d see an improvement and not have to worry so much about special diets.


Herb Neu October 17, 2012 at 10:01 pm

This site needs a “Like” (thumbs up) button. I’m learning a lot from this discussion.


Jennifer October 19, 2012 at 11:31 am

You’re right, Herb! I’m learning as much from the comments as I did from the original article. It’s rare for the comments to be as calm and concerned as these are. We feed our dogs SD as many of our friends work at the vet school here and that’s what they feed their dogs. I have wondered about corn, but I’m not sure. Keep all the conversation going!


Labradoodle puppies for sale October 19, 2012 at 5:54 am

I don’t want to sound preachy but we all know that plastic products are harmful for our environment. It’s surprising that how we continue to use them despite of being aware of their harmful environmental effects.


Nanette October 19, 2012 at 10:07 pm

I’m wanting to know exactly where this news is from? Was it posted on the Hill’s website?


Mary November 3, 2012 at 5:54 pm

Nannette, I wrote to hills. My vet also inquired about this misingormatin. from what I understand this hype was created by a competitor of Hills. The plastic patent they applied for is for the packaging, not an ingredient in the food.


Mary M October 21, 2012 at 11:38 am

The article is not true. I wrote to HIlls as well as my Vet to inquire about this. The plastic they applied for a patent on was for their PACKAGING not the food itself.


Russell November 16, 2012 at 6:30 pm

I work for Hill’s and wanted to clarify a couple items in this post. Hill’s
does not add plastic to any of our pet foods and has no plans to do so.
For any company that invests in research and innovation, it simply is
common in a patent application to include broad descriptions of
ingredients, technology or processes – even those that will not be used.

However, we ARE reformulating our Science Diet? foods to contain animal
proteins such as chicken, chicken meal, fish meal as the first ingredient,
and more natural ingredients with no chicken by-product, artificial colors
or flavors. More details at:


Jane Anderson November 23, 2012 at 2:43 am

I am very fortunate because I have discovered Honest Kitchen pet foods. It took a 6 month fight with the FDA, but now HK is recognized as the ONLY pet food that can legally call itself “Human Grade.” Their product is made in the same kitchen that makes human food products.

I use the Preference for my dogs, that is I add my own meat. It is working out beautifully as the Preference has all the vitamins and minerals too. My poor dogs used to constantly have rumbling from their tummy on Wellness and their stools were runny on Fromms. Finally my one dog absolutely refused to eat Fromms so I went hunting and found HK.

One problem, they did not like it. So I experimented and made a cake. I found that if I just mixed ground beef in by hand, it was just marbled and not truly mixed in. So I have one of those Ninja’s with the dough blade. I rehydrate Preference, add ground meat, two eggs, a little oil, some (plain) bread crumbs and mixed it very thoroughly with the Ninja. (However a mixer or food processor should work as well). Then I baked it in the microwave in a glass dish.

My dogs will eat the Preference this way. Both are 13, have liver issues – probably from 13 years of eating denatured meat every day. I didn’t know! I didn’t know that all meat destined for a pet food plant must be denatured in kerosene, benzene, phenol, etc. This is so it cannot get back into the human food chain.

Honest Kitchen has meat in the rest of their products but this is a true legal human grade. I figure with the non-meat Preference, I can use any type meat I want and can rotate.

I do give milk thistle for the two with liver issues. And I have found that if I put tomato sauce, the dogs will really eat the preference. Not just any tomato sauce of course. NO salt, or as little as possible (30 mg or less), no sugar, no onion. I cook the ground beef in this then strain and reduce the sauce as it is a little too watery. The dogs really like it. My one dog that is very fussy and won’t even eat green beans will eat them if I put some of this tomato sauce over.


brit November 23, 2012 at 9:30 am

I also like Honest Kitchen products. My only disappointment with them is that they use veggies that are the most sprayed (celery/spinach etc). Now to be clear, I do not expect them to use organic but I do wish they would avoid the most sprayed veggies. I use Keen the one product that has the least veg and the ones in it are least sprayed. I did contact them about this and they said they rinse everything well but missed my point about not using the worst ones. I add my own organic crushed veggies to their meals and also a little extra protein. Morning meals are usually raw chicken necks or backs.


Nik March 1, 2013 at 4:02 am

tomatoes are poisonous for dogs! Jeez, please avoid the chocolate also…


Jane Anderson March 8, 2013 at 9:24 pm

@Nik I do not let my dogs have chocolate. And while you are Jeezing please Jeez this. The following use Tomato Pomace in their dog food:

Blue Buffalo
Natural Balance
Nature’s Variety
Chicken Soup
Pure Vita
Eagle Pack
Solid Gold
Earthborn Holistic
Taste of the Wild
Holistic Select

In addition Orijin, ARCANA, and Now use tomatoes in some of their formulas as well


Bill January 21, 2014 at 1:25 pm

Ripe tomatoes and tomato products are not poisonous for dogs. Green tomato plants or any green plant or green fruit of the nightshade family (tomato, potato etc.) are poisonous to dogs as well as people.


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