Diseases Linked to Grains in Dog Food (Part 2)

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In Part 1, we talked about how dog food grains can cause chronic dog food allergies and attract some pretty nasty contaminants.

Dangerous Canine Diseases Linked to Grain Mold in Dog FoodLike insects, mites and molds.

We also talked about how these unwelcome infestations can be especially abundant in cheap, low quality feed grains.

But grain mites and insects can together create a much bigger problem.  They can easily pick up (and spread) the spores of highly dangerous molds.

I deliberately chose the word “dangerous” here because these molds are capable of producing some of the world’s deadliest natural toxins.

Now, before we discuss these life-threatening poisons… and how they can end up getting into your dog’s food… let’s take a quick look at the molds themselves.

Low Quality Grains Attract Hazardous Molds

First, like their cousins (mushrooms and yeasts) molds are members of a family of organisms known as fungi.

But unlike mushrooms, molds are completely invisible to the naked eye.  What’s more, they reproduce by creating even smaller seed-like particles called spores.

Now, because molds and spores are so incredibly tiny they can easily spread by way of the wind… or by hitching a ride on the bodies of mites and weevils.  So, it doesn’t take long for an entire storage bin of cereal grain to become quickly contaminated.

And sadly… because it’s so cheap… it is this low-quality, contaminated grain that’s so frequently used to make dog food.

Grain Molds and Their Deadly ‘Venoms’

OK… as you can imagine, many dogs are allergic to the molds and spores that have now found their way into their daily rations.

But the greatest danger to any pet lies in the possibility of ingesting the poisonous toxins produced by the molds themselves.

As I mentioned earlier, molds are capable of producing an exceptionally dangerous type of poison known as a mycotoxin.

Today, there are hundreds of known mycotoxins. And more are being discovered all the time. Here are some of the more common ones known to affect dogs…

  • Aflatoxin
  • Vomitoxin
  • Zearalenone
  • Ochratoxin
  • Fumonisin

Mycotoxin Poisoning… A Tragic and Painful Death

How a mycotoxin affects a dog is directly dependent upon the amount of the toxin the dog actually ingests.

This important relationship is known as the dose-response effect.  In other words… the higher the dose, the greater the risk of disease.

For example, if a dog were to eat a commercial pet food contaminated with a high level of aflatoxin… the result would be catastrophic.

Symptoms of acute aflatoxin poisoning include…

Sick Dog

  • Fever
  • Jaundice (yellow eyes and skin)
  • Dark urine
  • Persistent and violent vomiting
  • Bloody diarrhea
  • Death

A rare disease?  Not quite.

These are the very same symptoms that affected… and killed… so many innocent dogs worldwide in 2005… and prompted an emergency recall.

That was the year Diamond Pet Foods of Gaston, South Carolina made and distributed a large batch of aflatoxin-contaminated dog food.

Think this was an isolated event?

Diamond Pet Foods shipped the tainted products throughout the United States… and to 29 other countries around the world1.

A tragic and deadly incident… for sure.

But another… even greater… danger awaits the trusting consumer.

No Antidote… No Cure

An unexpected hazard of aflatoxin results when a dog ingests only a small amount of the poison… an amount not large enough to cause the more obvious, acute symptoms of the disease.

You see, even in tiny, trace amounts, aflatoxin can silently accumulate within a dog’s liver… attaching itself to the animal’s own DNA… where the poison eventually causes a fatal cancer.

Once the toxin enters a dog’s body… it stays there… forever.  There’s no antidote… and no known cure.

That’s why so many experts agree… the maximum amount of aflatoxin that should ever be allowed in any dog food should be… zero!

And that’s the real danger you face any time you choose to feed your pet a commercial dog food made with cheap, low quality cereal grain ingredients.

Hiding there… right inside the package… may be one of the deadliest, cancer-causing substances found in commercial dog food… mycotoxin.

And Now… More Bad News

Although cooking can kill the mites and molds… it has no effect on the poison itself.  So, the mycotoxins maintain their dangerous potency even after they get “baked” into the finished dog food.

And if that’s not enough… your own open package of pet food is capable of developing an ugly infestation… all by itself.

That’s because dog food can easily become contaminated with insects, mites and mold… right there in your own home.  All it takes is for one stray insect to deposit a single mold spore into an open bag of kibble.

And suddenly… your dog’s at risk.

What You Can Do to Protect Your Dog

OK… here are five simple suggestions to help you protect your dog…

1.  Never buy cheaply-made dog food

2.  Only choose fresh, “in-date” products

3.  Avoid any dog food containing grain by-products or mill waste

4.  Favor low-grain or no-grain dog foods.  Otherwise, only consider products made with high quality, whole grain ingredients

5.  Tightly re-seal every bag of open dog food.  Squeeze out all the excess air.  And always store the product in a moisture-free area

Spread the Word… Save a Life

Dog food grain ingredients might just be one of the most frequently overlooked causes for serious disease in otherwise healthy dogs.

So, go ahead.  Spread the word about grains in dog food.  And be sure to tell everyone you know who has a dog they care about.

Because you might just save an innocent life.

By the way… if you missed Part 1 of this article click here to read it now.

  1. “Toxic pet food may have killed dozens of dogs”, MSNBC.com News Services, Article ID 10771943, May 10, 2006
Dog Food Advisor IconThe Dog Food Advisor publishes independent reviews to help pet owners make better choices when shopping for dog food.


  • Jeremy

    My grandmas dog has had signs like these for 6 months or more now and she took him 2 the vet and they say allergies? (chewing paws/severe itching and scabs on body and ears/black stuff around genitalia area. I told her to go to multiple vets which was stupid for me to say as she lives in a federally subsidized building for the elderly and doesn’t have the money. I also noticed weird bugs crawling round which I found to be flour bugs or as she called em mealy bugs. I think she should probably just feed him “human” food as its called because I think it would do him more good and make him live a happier lifestyle because who knows how long he will live? Also I know of people who have fed their animals “people” food their whole life and never had any negative consequences. People I know been to the vet to get an opinion and been told their animal was in very good health. I’m 23 years old and have not come from a RICH family and all the pets I have owned growing up have been fed the like of Iams etc. and all died prematurally,( MY cat of 9 yrs died from tumors all over her body suddenly when I was 17which was devastating) I’m no animal expert but I’m just saying keep what I say with an open mind and believe in what you believe not what you are told. Thanks for your time if you read all of this .

  • Jenny R.

    I am almost in tears reading this. Both my childhood dog and then my first dog as an adult died of liver cancer. Granted, they were both 14 when they were put down, but they both had been in severe pain silently (dogs instintively hide pain so they don’t appear week to predators) and without symptoms for several months, maybe even over a year. I was surprised when my adulthood dog became very ill very suddenly because she was spry and very healthy for her age, and her bread has a long life expectancy. Both were fed Purina Dog Chow their entire lives. I strongly suspect mycotoxes.
    I have never heard of this problem with cheap dog food. My Dad has sworn up and down that pet store foods were a rip off and that Purina was a reputable brand. Even Consumer Reports said that inexpensive foods were nutriently superier to many expensive dog foods. They said that dogs don’t need human-grade food and that byproduct are as good as meat–humans could eat them if we weren’t so squeamish. Consumer Reports came to these conclusion after interviewing vetrinarians from the 3 largest sellers of dog food.
    My dog is on Blue Longevity (4 stars) for his weight problem, but I am switching to the best grain-free dog food I can afford–Blue Wilderness dry–on my next purchase. I will adjust his portions for calories and add sodium-free broth and some green beans to satisfy his hunger. I am sharing this article on facebook.

  • http://www.flickr.com/photos/magpie-moon/sets/72157602639729060/ Jewel

    Wow, Mike — so glad I stumbled onto your website while reading up on what we are feeding our dog for her PLE.

    There is some scary stuff going on out there. Just thinking about all the possible toxins in dog food is really frightening. The worst thing I can recall finding in a bag of food (that I am aware of!) is a rather large nut from a piece of machinery. That was scary enough, but at least it was big enough to see and throw away!

    I can see I’m going to have to do some studying here… thanks for making this information available! :)

  • http://DogFoodAdvisor.com Mike Sagman

    HI Kathy… Hi Tek Rations is already on my To Do list. But due to our current backlog of products for review, it could be a while longer before we get to it. Thanks for the reminder.

  • Kathy S Watts

    I couldn’t find Hi-Tek Rations which is something my local pet store just started offering. I bought the chicken. It was on sale which looked good to me because I am fostering 2 lab puppies. This store only carries natural and grain free products which this is but the 5th ingredient is pork meal which my vet said to keep away from my 2 yr old terrier mix and I assume the puppies too. Actually she said no pork. Pork meal probably is totally different The terrier just got home from 2 days of a hospital stay for mild case of pancreatitis. So I’m trying to be very careful as to what I feed all the dogs. I’m getting ready to just start making their food myself. At least I’ll know exactly what’s in it.

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Brandon… Nutram is already on my To Do list. However, due to our current backlog of products for review, it could be a while longer before we get to it. Thanks for the reminder.

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Erin… I’m sure there are some purists who believe plastic storage of any kind is not good for the storage of either human or pet food. However, I don’t see the problem at all. My only complains about accessory storage (Tupperware, plastic pails and the like are twofold: (1) the air space that grows as the food content within them steadily diminishes and (2) the loss of manufacturing information (batch data, Best By dates, etc.) that comes from separating the food from its packaging.

  • erin c.

    Is it ok to store kibble in Tupperware cereal containers?

    I buy a small bag and pour it out of the bag into the container.

  • Brandon W

    Alright,I can understand why I guess. I was looking at different brands that are available in my area. I noticed you do not have a review on Nutram. I found it to be good for my dog when she was a pup,never had problems till I switched to a mass produced brand. They (Nutram) do offer a grain free dry food. I had good results with the puppy formula from them so im debating if I should try the grain free product. I do also like the qualities of Orijen,they have all the qualities I was told to look for. Is it possible to review that brand so I may have an idea of their rating if they do not like the Orijen.

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Brandon… You may want to try a grain free dog food or a hypoallergenic recipe. Wish I could be more help. Unfortunately, I cannot provide customized reviews and product recommendations for each reader. For more information, please check out my reviews and visit our FAQ page. Look for the topic, “Help Me Choose a Dog Food”. Or check back for a possible response from one of our other readers.

  • Brandon W

    Hey Mike

    This is a great website,I wish i found it sooner. I noticed symptoms in my dog,and thought her hair loss was just shedding,but it had got worse. I decided to research what it could be instead of bringing her to the vet. I find they dont use the most effective,or natural ways of diagnosing a dog. Plus it can be costly. Im almost a hundred percent sure it is her food. She displays most if not all of the reactions. Some not as much,others more often. I also noticed the family dog as well with the majority of these reactions.Some of the symptoms got worse in my dog when I moved back home.Her diet was changed again and switched her to the family dogs food,iams adult instead of buying to kinds.She was on Nutram as a puppy, that got expensive on my own so I decided to get a brand that was a little less expensive and tried to avoid by-products I ended up choosing Pedigree. After that I started to noticed the symptoms in her.After learning it could be allergies I tried to search for all possible signs a dog may show.The family dog has always had ear problems,sensitive,infections,and warm. He always chews shit paws,and rubs his but on the floor.This is what leads me to believe it is the food,when she was switched some signs got minor some worse.Its when I noticed the hair I started to worry,specially when it got worse. So,I was looking at the types of food to start switching them to. I read some reviews of some brands. Some of the users comments have made me undecided and not sure what brand would be the most effective. I got some feedback from another forum for animal lovers about what ingredient it could be and was told to put her on something holistic,with no grains and no chicken. Is it at all possible to give me some suggestions as to what food is best and that you have heard/had about good results with ? There are so many selections and views of whats good or bad im lost as to what to pick. Do you think im in the right direction with the thought that it is their diet ? Im in canada,so not sure if that helps narrow down products. Thanks in advance for all the help. Id appreciate any feedback from anyone else as well that has info on this subject or if you went through it with your dog.

  • Meagan

    Thanks Mike. I do leave the bag in there as well with the food still in the bag, but only after reading your site :) . I never would have thought of having the product info for recalls.
    Thanks so much for this website and all your hardwork!

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Meagan… Yes, there’s air inside the container, too. So, you always want to squeeze all the air out of the bag first. And besides, you never want to lose the manufacturing information (lot numbers, Best By dates, etc.) just in case of a product recall. Thanks for that excellent question.

  • Meagan

    I put my opened bag of dog food in a plastic storage bin(made for dog food). Do I still need to re-seal the bag if its in a closed container?

  • Kassie

    I’m actually taking it back now. I couldn’t sleep over this.

  • Melissa

    Kassie-

    I would take that bag back to the place of purchase and immediately switch brands. If you are saying that there appears to be unground hair bits sticking out of the kibble(and I have seen that before over the years) why would you want to feed it anyway even if its not considered “contaminated’?

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Kassie… Not sure I understand what you mean by “crawling with hair”. In any case, it does sound like your particular bag of food is contaminated. I’m not aware of any recall. Could just be your bag got wet during storage. I’d recommend you contact Pedigree Customer Service.

  • Mike P

    Pedigree with 16 red flag items appears toxic without the hair Kassie . Even the hairless Pedigree is garbage food . Maybe you could buy a 3 or 4 star food for the same amount you pay for Pedigree .

  • Kassie

    Hello,
    I’ve been feeding my dogs Pedigree for a long time. The new bag I just bought, seems to be crawling with hair! I have never seen this in my dog’s food before & it scares me. I can’t find anything on it, I just want to be safe. I’m hoping there isn’t a recall. I really don’t want my animals eating tainted food! Please help.

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Ray… I’m no fan of these dispensers because they allow the dog to feed himself freely. And an animal can easily get too much food each day. Overfeeding in large breed puppies is now considered the leading cause of skeletal disease and hip dysplasia in adult dogs.

  • Ray

    Also, even when one feeds grain-free canned food that’s tightly sealed and stored, I would assume that we should still wash their bowls out daily just the same. For this is a potential hazard as well.

  • Ray

    What do you think of these dog food dispensers that dispense the food directly into the dish as the pet feeds in it? Would this be another concern for infestation?

  • annebkaba

    There is a magazine called The Whole Dog Journal which is available online (whole-dog-journal.com) or in specialty animal supply shops. Every February, they feature an article about dog foods. I strongly suggest that anyone concerned with the quality of the food they are feeding their dogs read this article. They do a great job of explaining what is and is not a good ingredient and why. I have no affiliation with them, I just like the magazine.

    I am currently fostering a lab with severe allergies, not uncommon in the breed. With a limited ingredient food and a much smaller dose of steroids than he’d been on for years, he is finally looking and feeling healthy. Good quality foods make a huge difference to our dogs, just like with ourselves.

  • Jonathan

    Well, BRI, this could be a very dangerous condition that will require a vet. If this is still going on, you need to get her to a doggy doc right away. And, of course, stop using Pedigree.

  • BRI

    Hi,
    I have a german pointer. we recently bought her a bag of pedigree dog food. Not even an hour after she ate the food she couldnt stand on her paws. Her stomach went in as if she hadnt eaten in months. Would anyone know what could be the cause of this? she has eaten this brand since she was a pup it has never effected her.

  • Brad

    What has helped us with our dogs food is the book by Ann Martin called FOOD PETS DIE FOR, you can get it pretty cheap, used, on Amazon, it is stunning about the crap that these greed motivated BIG companies put into dog foods! all the garbage that is unusable by the human food industries is put into pet foods! and they are dying from it.

  • Mary

    I have used Avoderm for over 10 years. So far there has not been a recall that I know of. I also give them vegies from the garden. There favorite snack seems to be zucchinis. It’s a great way to clean there teeth. Apples are great for teeth cleaning.

  • Brenda

    I had a dalmatian that ate Beneful most of his life. He developed urate stones and had surgery at the age of 11. 8 month later I lost him to a swift an brutal case of liver cancer. He ate Science Diet U/D after the urate surgery. The vet said there had been no sign of cancer when he had the stone surgery. Makes you wonder.
    I am just now doing research to change the food my dogs are eating. They have been on Iams large breed for over 2 yrs. One has hot spots and general itching. He is on a round of steriods for that problem. Two don’t want to eat sometimes. Recently we have had some vomitting and stool issues. I had no idea about some of the things I am learning. Great info. Thanks!

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Ruth… So sorry to hear about your son’s dog. Corn isn’t necessarily the culprit. Next time, though, try to avoid any dog foods rated just 1 or 2 stars. Look for 3, 4 or 5-star foods that fit your budget. If you believe grains cause problems, then try a quality grain-free food. Hope this helps.

  • Ruth

    We just had to put my Son’s dog down last night and I believe all of her problems came from the dog food. She never had cheap or generic food, but she still got pancriatic cancer which spread to her liver. She had always been a beautiful healthy dog and just in the last month or two she started showing signs of feeling bad and loss of stamina. We get a lot of our foods from other countries and they definately don’t care. We are at a loss as to what to feed our dogs, we reciently rescued 2 cocker spaniels and we always read the labels and don’t buy anything with corn in it, but what can we do??

  • http://www.healthypetnet.com/sheatina Sheatina

    This is so sad indeed. I have been feeding my dogs Life’s Abundance and it has never been recalled. It is more expensive, but well worth the price. I had a friend recently lose a dog to likely poisoning in Eukanuba. She is waiting on test results from the food.
    If you would like info about this good food, please contact me. Blessings to all.
    Sheatina

  • kanya

    I had two dogs die from giving them diamond dryfood. Realized when the company recalled or had issues with food, it was too late. The bag I had in my possession were the dates the company recalled. Very fine, vivacious, young dogs lost there life because of diamond.
    Very angry at this company. I will not buy cheap dogfood anymore for this reason.

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Kellie… mites can be a problem with any dog food containing cheap cereal grains. Although your vet has surely made a savvy diagnosis, I’d be inclined to focus more on the ingredients in the food rather than whether or not it is canned or dry. A three, four or five-star grain-free product would probably be an excellent place to start. Hope this helps.

  • Kellie

    My dog was just diagnosed with allergies to storage mites and dust mites and my vet suggested a wet food diet. Any suggestions on what to look for in a wet food and/or will a grain free food be good enough?

  • http://DogFoodAdvisor.com Mike Sagman

    Hi De… There are a number of consumer testing labs around the country. But looking for a possible toxin in a package of dog food is like trying to find that proverbial needle in a haystack. Testing labs charge you “by the test” for each specific toxin. And there are literally hundreds of different possible toxic agents to consider. Individual tests can cost hundreds of dollars each. For multiple “suspects” your bill could easily reach into the thousands.

    What would help you save the most money is if you had some particular toxin already in mind. Then, the lab could run a test for just that specific agent (by itself).

    Ask your vet if he or she has a particular chemical suspect in mind.

    If you can handle the expense, try contacting Microbac Laboratories in Warrendale, PA at 724-772-0610. I’ve never used them myself but they appear to be at least interested in doing this type of work. Hope this helps.

  • De Davis

    Is there somewhere I could get dry dog food tested? My 8 yr old mixed breed died from sudden liver failure about three weeks ago. I suspect the dog food .

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Brenda… Haven’t yet reviewed that dog food. But thanks to your suggestion, I’m adding it to my “to do” list.

  • Brenda

    I feed my dogs Beef n’ more, is it a good brand to feed my dog?

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Shirley… I know how you feel! The world of commercial dog foods IS confusing (indeed). That’s why I created this website. You certainly can continue feeding a dog food that you (and your pets) both like. But it never hurts to do a little comparative “shopping”. If you have any doubts about your current dog food, try looking through some of the better-rated products. There are some really great dog foods out there. I plan to cover hundreds more over the next year… so if you can’t find one you really like, then stop back again. And I welcome any suggestions you have for others you’d like me to review.

  • http://zeleyspapillons.com Shirley

    I have three breeds of dogs which I show in conformation. Papillon Tibetan Spaniel and SmoothCoat Chihuahua and have been feeding Purina Pro Plan for years because it is one of the foods that wasnt recalled.
    Now I am completely confused and wonder what dry food to buy!!!