Skip to content
Previous article
Now Reading:
Four things you need to know about pet food and supplement packaging

Four things you need to know about pet food and supplement packaging

Aluminum, tin cans and plastic packaging leach toxins into your food, pet food and supplements

Today's topic is close to my heart because it affects the health of your dog, your own health and also the health of our planet. Pretty much all supplements we give to our dogs are packaged, and my goal today is to look at each packaging group with a magnifying glass.

1. Plastic bottles and jars

Plastic is the most common form of packaging used because it's cheap. When you see products packaged in plastic, it is a sign that the manufacturer either:

  • Does not care about the environment;
  • Does not have knowledge of the fact that plastic leaches into the product inside the jar;
  • Values lower packaging costs over and above the health of your dog;
  • All of the above.

Recently, I wrote an article on the effects of plastic, BPA, and xenoestrogens and how they disturb the endocrine (hormonal) balance of dogs. In addition, we are just starting to see the huge negative impact of micro-plastic on the environment, especially on the marine ecosystem.

The discovery that BPA is toxic to health and the environment was made accidentally in the early nineties by Dr. Feldman, who failed to produce estrogen using yeast but coincidentally discovered that BPA, in fact, has estrogen-like effects.

2. Tin cans

These are much more commonly used for pet food and less common in supplement packaging, but there are some products that are packaged in tin.

Tin cans were first used in the early 19th century when canning food became one of the most common and inexpensive food preservation methods. Tin is corrosion resistant; however, it leaches into foods, and leaching is even more severe when acidic foods like tomatoes, vegetables, fruits, and fruit juices come in contact with the metal.

At high concentrations, tin can cause clinical symptoms such as nausea, vomiting, and diarrhea. This is one of the reasons cats and dogs should not be fed canned food.

If you are wondering if your dog has been exposed to toxins, you can use the HairQ test to see what your pet’s exposure level is.

As if this was not enough, “modern” cans are now commonly lined with a coating containing bisphenol-A (BPA). Multiple research studies have confirmed that BPA in plastic and can linings is a serious hormone disruptor.

Unfortunately, even BPA-free cans contain other xenoestrogens, which makes the verdict clear. Do not use food or supplements stored in cans whenever you have a choice.

3. Aluminum cans and packaging

This packaging was first used for Coors beer in the '50s. It was cheaper and easier to produce than tin, and aluminum is one of the most abundant elements in the Earth’s crust. However, similar to tin cans, BPAs were used for a long time.

Nowadays, the inside of most cans is coated with either polyester or acrylic, which are chemicals in the polymer group. While they are relatively inert, their production involves the use of “monomers” made from crude oil that are much more toxic. The reason is that a small portion of toxic monomers in polymers “escape conversion,” and these “rogue toxic monomers” then leach into food.

In addition, polyester is part of the microplastic pollution that threatens the whole marine food chain and reproduction.

As you can see, aluminum cans are not good for the environment, you, or your dog.

4. Glass packaging

The primary constituent of glass is sand (quartz or silicon dioxide), which is food-safe and inert. Additional components may be sodium oxide from sodium carbonate (baking soda) and calcium oxide (lime), which are also food-safe.

Sadly, despite the unrivalled safety record of glass, most supplements are packaged in plastic or aluminum, with the exception of a few high-end brands.

If you are wondering why, the reason is that glass is more expensive and heavier. Knowing this, we all must ask one serious question: If a company is willing to use toxic and environmentally hazardous packaging to save money, does it also source lower-quality ingredients to increase its profit margin?

At first glance, glass is, indeed, more expensive, but when you look at packaging from the perspective of what matters the most, your dog's health and the environment, glass is an indisputable winner. It is food-safe and environmentally friendly, and the primary source is as plentiful as the sand in the Sahara desert!  

I can definitely promise you one thing, when it comes to my supplements for dogs they will always come packaged in glass. 

© Dr. Peter Dobias, DVM


About the author

Dr. Peter Dobias, DVM is an Integrative veterinarian, nutritionist and creator of natural supplements for dogs and people. Helping you and your dog prevent disease, treat nutritional deficiencies, and enjoy happier, healthier, and longer lives together.

Most Popular

  • Flying with dogs
    In my article, I share the personal story of how I'm able to fly with my dog, Pax, thanks to overcoming challenges with sleepwalking and night terrors. This unique experience not only allowed me to travel with my service dog but also serves as a reminder that even difficult situations can have positive outcomes.
  • dog and pony
    Successful communication is essential for building healthier and more fulfilling relationships and happier lives. In this article, I'll share with you 8 communication hacks to help you avoid unnecessary drama, prioritize active listening and address conflicts effectively.
  • Dalmatian eating fruit
    Can dogs eat bananas, apples, strawberries and other fruit? What about grapes? Find out what fruits are safe, toxic, and healthy for dogs. Learn about the potential health benefits and risks of feeding fruit to your canine companion, and get tips on the ideal time to feed it.
  • Illustration of the anatomy of a heart
    As dog lovers, we all want our beloved pups to live long and healthy lives. Protecting your dog's heart from potential health issues is important, and in this blog Dr. Dobias shares some key points that you might not yet be aware of, read on to find out what you can do to keep your dog's heart safe. 

Dog Health

  • Husky lying on blanket with heart toy
    Dogs have our hearts and that is why we need to protect their heart. Dog’s as they age often face muscle problems and spinal misalignment and you might be surprised to know how that can hurt their heart. Learn how to protect your dog’s spine and by extension their heart.
  • The secret ingredient for a perfect No. 2
    Dogs and humans have evolved side-by-side but they are still quite different when it comes to their digestive tracts and dietary habits. We have studied their original environments such as the soils of the African savanna and consulted with top experts in the field of probiotics and microbiology to come up with a combination that reflects healthy bacterial flora of canines.
  • Man being pointed at
    Criticism can hurt a brand, but constructive feedback can help it grow. In this blog Dr. Dobias talks about the differences between these approaches, and how to handle the power of influence and opinion with care. 
  • Broccoli with vitamins and minerals
    Are you worried that your and your dog's diet is missing something? Maybe you're worried about toxin levels in food, the environment, or flea and tick products. Let's face it; we can't remove ourselves entirely from our toxin-filled world, but we can do things to reduce our exposure to harmful substances. 

Human health

  • Dr. Dobias with Pax
    How do you navigate the seas of life? How do you deal with disappointment? Whatever life throws at us, we can always rely on our dogs to bring joy into our days. In this blog I share my thoughts on the support our dogs provide during the difficult moments in life. 
  • Why 1 in 4 Americans suffer from non-alcoholic fatty liver disease (NAFLD)
    Learn more about the alarming prevalence of Non-Alcoholic Fatty Liver Disease (NAFLD) affecting 1 in 4 Americans. Discover its main risk factors, diagnosis methods, and treatment options to better manage or prevent this silent yet severe condition. 
  • A new perspective on brain health, memory loss, Alzheimer's Disease, and dementia in people and dogs
    The Science of DHA and the Brain: Omega-3 fatty acids, primarily DHA, are the unsung heroes of brain health. They play crucial roles in brain physiology and biological activities, with exciting links between Omega-3 levels and cognitive function. Higher DHA levels have been shown to preserve the integrity of the Blood-Brain Barrier (BBB), your brain's security system
  • Dr. Dobias and Pax
    It appears that most of the world is ready for change, but whenever I think about the solutions to any of the problems that plague our world, I can’t prevent myself from thinking that we humans are acting like little toddlers who have broken a toy and do not know how to fix it. Despite my generally optimistic attitude, I have had a hard time staying positive at times because I know how complex this all is. Read here for some tools that make me feel good about the world, which I would like to share with you.

News, stories and good life

  • Dr. Peter Dobias with his dog Pax on his lap
    Do you have trouble staying positive during difficult times? These days we are surrounded by a lot of negative messaging, and it's easy to let that get you down. Here are some of my tips for remaining positive, and don't forget to share your tips with me!
  • Man raising fist on a mountain
    Most of us have been exposed to panic-inducing information about the virus spread, however, I have noticed the general absence of one piece of information, how to make your immune system stronger and body more resilient. (It will definitely not happen by stockpiling toilet paper!) I have always loved immunology and the current situation has prompted me to put together two simple lists on how to increase your dog’s and your own immunity.
  • Man with dog wearing a collar
    Does your dog have ear problems, nasal or oral tumors, reverse sneezing or an  itchy head or hair loss on their head? Learn how you can address some of these problems and save thousands in vet care costs.
  • Terrier eating raw food
    Now there is no need to guess if there is something missing in your dogs diet.  The HairQ Test is a highly accurate test for mineral deficiencies, toxins and heavy metals in dogs to finely tune your dog’s diet and supplement schedule.



Your cart is currently empty.

Start Shopping