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10 Best Cancer Supplements for Dogs

Written by: Arlene Divina
Arlene Divina, one of the content writers at IHD, loves going on adventures with her adorable fur baby. She now creates informative content for pet parents. Read more
| Published on August 27, 2023
iHeartDogs is reader-supported. Some of the links below may be paid affiliate links, where we receive a small commission on a product at no additional cost to you. 

As our understanding of canine health deepens, so does our commitment to ensuring that our furry companions live longer, healthier lives. With the unfortunate prevalence of cancer in dogs, pet parents are increasingly seeking preventive measures and complementary treatments. One avenue that has garnered significant attention is the realm of cancer supplements. These supplements, backed by scientific studies and holistic practices, offer potential benefits in bolstering a dog’s immune system and overall well-being, particularly when faced with the challenge of cancer.


#1 – iHeartDogs Bone Broth for Dogs – Bone Broth & Mushroom Gold Powder Supplement for Immune System Support, Improved Mobility & Flexibility and Natural Detox – Turkey Tail Mushroom for Dogs

The iHeartDogs Bone Broth for Dogs is a bone broth and mushroom gold powder supplement designed to support the immune system, improve mobility and flexibility, and promote natural detox in dogs. The addition of a mushroom blend enhances the immune-boosting properties of the bone broth. This product includes organic chicken bone broth and a proprietary mushroom blend consisting of six types of mushrooms, including turkey tail, known for their anti-inflammatory and immunity-boosting properties. It provides nutrients like glucosamine, chondroitin, hyaluronic acid, and collagen to support joint health, gut health, hydration, and healthy skin and coat. Additionally, it aids in the natural detoxification process and supports liver function.


#2 – Mushroom Complex for Dogs – 120 Chewable Tablets – Turkey Tail Mushroom for Dogs – Immune Support, Joint Support, Digestive Support and Liver Support with Milk Thistle – Dog Mushroom Supplement

The Mushroom Complex for Dogs is a natural dog supplement that contains mushrooms such as Turkey Tail, Lion’s Mane, and Shiitake. It is designed to provide various health benefits for dogs, including digestive support, joint support, liver support, and immune support. The product is manufactured in FDA-registered facilities in the USA and is made from US and globally sourced ingredients approved by veterinarians, making it a trustworthy option for dog owners.


#3 – Shroomies – Organic Mushroom Complex for Dogs – Turkey Tail, Lions Mane – DHA, EPA, Turmeric and Kelp – 180 Soft Chews – Immunity, Cognitive Support and Joint Health

Shroomies Organic Mushroom Complex for Dogs is a supplement designed to provide immune support, cognitive support, and joint health to dogs. The product contains a blend of organic mushroom extracts, including Turkey Tail and Lion’s Mane, as well as additional ingredients such as DHA, EPA, turmeric, kelp, and BioPerine for improved absorption. The supplement is made with real ingredients, without any fillers or artificial additives, and comes with a satisfaction guarantee.


#4 – iHeartDogs Hemp Calming Chews for Dogs – Dog Anxiety Relief Bites with Hemp – Bacon Flavored Dog Calming Treats for Anxiety and Stress

The iHeartDogs Hemp Calming Chews for Dogs are bacon-flavored soft chews that aim to provide anxiety relief for dogs. These treats are designed to help promote a sense of calm in dogs and may also assist with natural joint mobility. The product has undergone third-party testing and has been approved by the Clean Label Project, ensuring transparency and quality.


#5 – Honest Paws Hemp Oil for Dogs – Natural Hemp Seed Oil and Calming Purity Drops for Dogs Rich in Omega 3 6 9 to Promote Healthy Bones, Joint Support, Relaxation and Relieve Discomfort -Made in The USA

Honest Paws Hemp Oil for Dogs is a natural hemp seed oil and calming drops that aim to promote healthy bones, joint support, relaxation, and relieve discomfort in dogs. Made in the USA, this 100% natural hemp oil provides a holistic alternative to help reduce nervous chewing and increase mobility, agility, and energy in dogs. It also includes omega 3, 6, and 9 to support overall health, soothe skin-related issues, and strengthen the immune system.


#6 – Zesty Paws Turmeric Curcumin for Dogs – for Hip & Joint Mobility Supports Canine Digestive Cardiovascular & Liver Health Coconut Oil for Skin Health with 95% Curcuminoids + BioPerine Duck, 90 Count

Zesty Paws Turmeric Curcumin for Dogs is a natural pet supplement that aims to support hip & joint mobility, as well as digestive, cardiovascular, and liver health in dogs. The soft chews are made with organic ingredients, including turmeric and curcumin, which can help relieve joint aches and pains while protecting the immune system. The formula also includes BioPerine, sourced from black pepper extract, to enhance nutrient absorption, and coconut oil for additional joint support and other health benefits. Zesty Paws is a trusted brand in the pet supplement industry.


#7 – iHeartDogs Hip and Joint Supplement for Dogs – Advanced 8-in-1 Dog Joint Supplement Chews with Glucosamine, Chondroitin, Turmeric & MSM – Bacon Flavor, 90 Count

The iHeartDogs Hip and Joint Supplement for Dogs is an advanced 8-in-1 dog joint supplement chew that contains a unique blend of 8 powerful active ingredients to support joint health in dogs. It includes ingredients such as glucosamine, chondroitin, turmeric, and MSM, which help reduce inflammation and improve joint function. The supplement is all-natural and grain-free, making it suitable for dogs with common food allergies and sensitivities. Additionally, the manufacturing process ensures the viability of the active ingredients, maximizing the benefits for dogs.


#8 – Zesty Paws Omega 3 Alaskan Fish Oil Chew Treats for Dogs – with AlaskOmega for EPA & DHA Fatty Acids – Hip & Joint Support + Skin & Coat Chicken Flavor (90 Soft Chews)

Zesty Paws Omega 3 Alaskan Fish Oil Chew Treats for Dogs are chewable supplement treats that aim to improve the overall wellness of dogs. Made with AlaskOmega, which is derived from wild Alaskan Pollock, these treats provide a source of Omega fatty acids (EPA and DHA) to support a healthy coat, skin, joints, heart, and immune system. Additionally, the treats contain vitamins and antioxidants that may help with dry, sensitive skin and promote a soft and shiny coat. Zesty Paws is currently the top-selling dog supplement brand on Amazon.


#9 – Native Pet Omega 3 Oil Supplements with Omega 3 EPA DHA – Supports Itchy Skin + Mobility – Liquid Pump is Easy to Serve – a Fish Oil Dogs Love! (8 oz)

The Native Pet Omega 3 Oil Supplements are made with USA-sourced wild-caught salmon and pollock oil. Designed by a leading vet nutritionist, this omega-3 blend delivers the optimal mix of EPA, DHA, and Vitamin E. The fish oil helps defend against itchy and sensitive skin, while also boosting immunity and joint health. The product is easy to use with a convenient pump and is sure to be loved by dogs.


#10 – iHeartDogs Senior Super 7 Daily Dog Multivitamin: 7-in-1 Vitamin for Dogs Supports Anti-Aging Antioxidant & Probiotics, Ashwagandha, Milk Thistle, Resveratrol, Lion’s Mane, Turkey Tail for Longevity

The iHeartDogs Senior Super 7 Daily Dog Multivitamin is a 7-in-1 vitamin for senior dogs that aims to support anti-aging and promote longevity. This supplement includes ingredients such as ashwagandha, milk thistle, resveratrol, lion’s mane, and turkey tail, which are believed to aid in cognitive function and overall health. Additionally, for each jar purchased, the company provides 14 healthy meals to shelter dogs.


What Natural Supplements Can Provide Cancer Support for a Dog? What Research/Studies Have Been Done on Them?

Several natural supplements have been explored for their potential cancer-supportive roles in dogs. While many of these supplements are believed to offer benefits based on anecdotal evidence, it’s essential to note that scientific research in this area is still ongoing. Some of the most frequently considered supplements for cancer support in dogs include:

  1. Turmeric (Curcumin): Curcumin, the primary active ingredient in turmeric, has shown potential anti-inflammatory and antioxidant properties. Studies have suggested that curcumin may inhibit the growth of cancer cells and reduce the spread of tumors. However, more rigorous research is needed to establish its efficacy in canine cancer treatment.
  2. Mushroom Extracts: Certain mushroom species, like the Turkey Tail mushroom, have been researched for their potential cancer-fighting properties. A study sponsored by the National Institutes of Health (NIH) explored the effects of a Turkey Tail mushroom extract on dogs with hemangiosarcoma and found promising results in extending survival times.
  3. Omega-3 Fatty Acids: Omega-3s, particularly those found in fish oils, have been associated with anti-inflammatory effects. Some studies have suggested that they may help slow the growth of certain types of cancer cells, although more research is required.
  4. CBD Oil: Cannabidiol (CBD) oil, derived from the hemp plant, has garnered attention for its potential therapeutic benefits, including cancer. Preliminary research indicates CBD may have anti-tumor effects and can improve the efficacy of certain drugs used in cancer therapy. Still, more studies are needed to understand its full potential.
  5. Antioxidants: Vitamins like C, E, and A, along with compounds like lycopene and astaxanthin, have antioxidant properties. While they are often believed to counteract cancer-causing free radicals in the body, definitive studies on their direct impact on canine cancer are limited.
  6. Milk Thistle: Primarily known for its liver-supportive properties, milk thistle is also considered for its potential anti-cancer effects. Some studies indicate that its active ingredient, silymarin, might have anti-tumor activities.

It’s imperative for pet owners to consult with a veterinarian before administering any supplement to their dogs, especially when dealing with a disease as serious as cancer. The vet can provide guidance on appropriate dosages and potential interactions with other treatments or medications.


What Are The Benefits of Mushrooms, CBD, Omega-3, and Turmeric for Dogs with Cancer?

  1. Mushrooms:
    • Immune System Support: Compounds in certain mushrooms, like polysaccharopeptides in Turkey Tail mushrooms, are believed to boost the immune system. A strengthened immune system may help the body recognize and attack cancer cells.
    • Tumor Inhibition: Some mushroom species have demonstrated potential anti-tumor activities in preliminary studies.
    • Enhanced Survival Times: Research on Turkey Tail mushrooms, for instance, has indicated increased survival times in dogs with specific types of cancer, such as hemangiosarcoma.
  2. CBD (Cannabidiol):
    • Pain and Inflammation Reduction: CBD is well-documented for its anti-inflammatory properties, which can help alleviate pain associated with tumors or cancer treatments.
    • Appetite Stimulation: Dogs undergoing cancer treatments like chemotherapy might experience a loss of appetite. CBD can help stimulate their appetite, ensuring they get the necessary nutrients.
    • Potential Anti-Tumor Effects: Preliminary research indicates that CBD may slow tumor growth in certain cases, although this claim needs further validation.
  3. Omega-3 Fatty Acids:
    • Anti-Inflammatory Benefits: Omega-3s are known to reduce inflammation in the body, which can be beneficial for dogs with cancer.
    • Cell Membrane Health: Omega-3s are crucial for maintaining healthy cell membranes. This may help in protecting against abnormal cell growth and development.
    • Enhanced Response to Treatment: Some studies suggest that Omega-3s might improve the efficacy of certain chemotherapy drugs.
  4. Turmeric (Curcumin):
    • Anti-Inflammatory Properties: One of the most celebrated benefits of turmeric (specifically its active compound, curcumin) is its potent anti-inflammatory effect, which can assist dogs in managing the inflammation often associated with cancer.
    • Antioxidant Boost: Curcumin is a powerful antioxidant, helping to neutralize free radicals in the body. Free radicals can cause cell damage and potentially contribute to cancer development.
    • Potential Anti-Cancer Effects: Preliminary studies indicate that curcumin may inhibit tumor growth, prevent the spread of cancer cells, and even induce cancer cell death. However, more extensive research is needed to confirm these findings in dogs.

It’s essential to approach these supplements as complementary treatments. They should not replace conventional cancer treatments but can potentially enhance the overall well-being of the dog and improve the efficacy of other treatments. Always consult with a veterinarian before introducing any new supplement to a dog’s regimen.


Frequently Asked Questions About Cancer Support Supplements for Dogs

  1. What are cancer support supplements for dogs?
    • Cancer support supplements are natural or synthesized products designed to aid dogs diagnosed with cancer. They can help enhance the dog’s overall health, combat side effects of conventional cancer treatments, and potentially inhibit tumor growth.
  2. Are these supplements a replacement for traditional cancer treatments?
    • No, these supplements are meant to complement, not replace, traditional treatments like surgery, radiation, or chemotherapy. Always consult your veterinarian about any treatments or supplements for your dog.
  3. How can mushrooms help a dog with cancer?
    • Certain mushrooms, like Turkey Tail, have compounds believed to boost the immune system, demonstrate anti-tumor activities, and increase survival times in some canine cancer types.
  4. Is CBD safe for dogs with cancer?
    • CBD, when sourced from reputable manufacturers, is generally considered safe for dogs. It can help with pain, inflammation, and appetite issues. However, always consult with a vet before administering CBD to ensure proper dosage and safety.
  5. How do Omega-3 fatty acids support dogs with cancer?
    • Omega-3s can reduce inflammation, support healthy cell membranes, and may enhance the efficacy of certain chemotherapy drugs. They’re also vital for overall health and well-being.
  6. Can turmeric/curcumin benefit a dog diagnosed with cancer?
    • Yes, turmeric and its active compound, curcumin, have anti-inflammatory and antioxidant properties. Preliminary studies suggest it might inhibit tumor growth and help prevent the spread of cancer cells.
  7. What potential side effects should I watch for when giving my dog these supplements?
    • Like all supplements and medications, there’s a risk of side effects. These can range from gastrointestinal upset to allergic reactions. Always monitor your dog closely after introducing a new supplement and report any abnormalities to your veterinarian.
  8. Can I give my dog multiple cancer support supplements at once?
    • While some supplements may be combined, it’s crucial to consult with your veterinarian before administering multiple products. They can advise on potential interactions and recommend dosages.
  9. How do I determine the right dosage of a supplement for my dog?
    • Dosage can vary based on the dog’s size, the type of supplement, and its concentration. Always follow the manufacturer’s guidelines and seek guidance from your veterinarian.
  10. Are there scientific studies on the effectiveness of these supplements in dogs with cancer?
  • While many of these supplements have shown promise in preliminary studies, more extensive and definitive research is needed. It’s always a good idea to discuss any supplement with your veterinarian, as they can provide insights into the latest research and findings.


Conclusion: Best Cancer Supplements for Dogs

Navigating the emotional journey of a cancer diagnosis in dogs is undoubtedly challenging. However, with the rise of cancer supplements, there’s a glimmer of hope for improving the quality of life and potentially aiding in the battle against this disease. While these supplements don’t replace conventional treatments, they offer a supportive role, giving our beloved pets a fighting chance. Always consult with a veterinarian before introducing any supplement to ensure it’s the right fit for your dog’s unique needs.

iHeartDogs is reader-supported. Some of the links below may be paid affiliate links, where we receive a small commission on a product at no additional cost to you. 

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