Do dogs need supplements? 

As a canine nutritional specialist, I get asked this question all the time in some form or another.

And, as with all valuable answers or information, I’m sorry to say there are no fixed rules or a straight answer. But read on, and I’ll help you decode the mysteries surrounding dog supplements so you can make informed decisions. 

Do I supplement my dogs? Yes, I believe that we feed and support the dog in front of us, and that there is not one rule for all. As every dog is different and needs different things.

Why do I supplement?

I have 2 dogs, Myst and Taz, and they are both highly active and do sports. They are at different life stages and have different needs.  So, do get different things added to there bowl.

I believe that it is important to look at many factors to support your dog through their life, the best you can.

Let’s Myth Bust Dog Supplements 

1.      "If it’s natural, it must be safe."

The myth:  Anything labelled "natural" is automatically safe for dogs. 

The truth: Natural doesn’t always mean harmless. Some natural ingredients can interact with medications or be toxic in high doses.  For example, a lot of joint supplements contain devil’s claw. Whilst this is fantastic at supporting joints and it is a great pain relief, it can interact with standard drugs, which can cause other issues.

2. "Dogs on a raw diet don’t need any supplements."

The myth: Raw feeding provides everything your dog needs. 

The truth: A well-balanced raw diet can meet many needs, but some dogs may still benefit from added support, like omega-3s, joint support, or specific nutrients, depending on life stage or health conditions. Every dog is different.

3. "Human supplements work just the same for dogs."

The myth: You can give your dog your vitamins or supplements. 

The truth: Some human supplements contain sweeteners like xylitol (which is toxic to dogs) or inappropriate dosages. Dogs process things differently than we do, so whilst in some circumstances you do need to use a human supplement, this should not be done without speaking to a professional.

4. "More is better."

The myth:  If a supplement helps a little, a larger dose will help more. 

The truth: Over-supplementing can lead to toxicity or imbalance. For example, too much calcium or vitamin D can cause serious health issues. Always follow dosing guidelines.

5. "If my dog looks healthy, they don’t need supplements."

The myth: Only dogs with visible issues need extra support. 

The truth: All dogs can benefit from extra support throughout their life. Some supplements, like probiotics or joint support, can be proactive, helping maintain good health rather than fixing a problem. Think of it as supporting the foundation before cracks appear. 

6. "Supplements work instantly."

The myth: You’ll see results right away. 

The truth: Most supplements take time to build up in the body. Things like joint support or skin supplements often take a few weeks before you notice any real difference. Patience is key!

7. "All supplements are the same."

The myth: It doesn’t matter which brand or form you use—they’re all equal. 

The truth: Quality, sourcing, and bioavailability vary massively between brands. Some supplements might use fillers or poorly absorbed forms of nutrients. Look for trusted, transparent companies with clear ingredient lists. I am very fussy about what we have in store and what I will recommend or give to my dogs. It can be hard to read the labels and know that what you are giving will provide the best support.

8. "My dog gets everything they need from kibble." 

The myth: Commercial dog food is 100% complete and balanced, so supplements are pointless. 

The truth: While kibble is formulated to meet basic needs, heat processing can destroy delicate nutrients. Plus, every dog is different—some need extra support for joints, Digestion, skin, or stress. Yes, you can get dog food that says they have added extra for support, but this goes back to all supplements are not equal, which we know they are not.

9. "Herbal supplements aren't real medicine."

The myth: Herbs are just fluffy ‘woo-woo’ and don’t do much. 

The truth: Well, I’m trained in herbal choices, and I have seen the benefits herbs can provide for animals. We also need to remember that herbs have been used in medicine since time began and that a lot of modern medicines have come from plant matter.  Herbs like milk thistle, turmeric, and ashwagandha can have powerful effects when used properly. But they also need to be respected—dosage and sourcing matter, and some herbs aren't safe for all dogs.

Why Might Dogs Need Supplementing?

While a balanced diet is essential for dogs, there are certain circumstances where supplementation may be beneficial:

1. Health Conditions: Dogs with specific health conditions, such as arthritis, allergies, or skin disorders, may benefit from targeted supplements to alleviate symptoms and support overall health.

   
   

2. Age-Related Changes: As dogs age, their nutritional needs may change. Older dogs may require additional support for joint health, cognitive function, or immune system function, which can be provided through supplements.

   
   

3. Stress or Trauma: Dogs experiencing stress or recovering from trauma, such as surgery or illness, may benefit from supplements to support their immune system and aid in the healing process.

   
   

4. Breed predisposition: some breeds are more likely to suffer from joint or skin issues, and you may want to provide additional support before they start with any symptoms.

   
   

5. Immune System Boost: To help ward off illness, allergies, and inflammation, immune-boosting supplements like medicinal mushrooms, antioxidants, and herbal blends can strengthen your dog’s natural defences.

   
   

So, do dogs need supplements?

While supplements may have a place in some dogs' diets, they are not universally necessary. By understanding your dog's individual needs and providing a balanced diet, you can promote their health and well-being without relying on unnecessary supplements. 

However, in certain circumstances, supplementation may be beneficial to address specific health concerns or nutritional deficiencies.

Book a consultation and get advice specific to your dog

Shout out if you have any questions or would like to know more

Evidence and References:

1. National Research Council (US) Committee on Animal Nutrition. "Nutrient Requirements of Dogs and Cats." National Academies Press (US), 2006.

   • Comprehensive guidelines on the nutritional requirements of dogs and cats, applicable to both commercial dog foods and raw diets.

2. Freeman, L. M., et al. "Nutritional supplements and their effect on canine health." Journal of the American Veterinary Medical Association, vol. 239, no. 11, 2011, pp. 1401-1404.

   • Examination of the effects of nutritional supplements on canine health, emphasizing evidence-based supplementation and the role of nutritionists in guiding supplement use.