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Cancer Fighting Toppers

Toppers & Treats

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Cancer prevention is a whole-dog approach, but there are many known cancer fighting foods that you can add to your dog’s bowl every day. Dr. Kendra Pope specifically recommends that your dog “eat the rainbow” as these brightly colored foods contain potent phytonutrients and anti-inflammatory compounds that actively fight cancer development. These vibrant foods contain cancer-fighting properties that can help reduce inflammation throughout your dog’s body. As she explains, “Anything that is fighting inflammation will work to fight any damage,” making these colorful additions particularly valuable.

Broccoli Sprouts

Benefits: Broccoli sprouts contain sulforaphane, which works as both an antioxidant and anti-inflammatory that may prevent and slow the growth of cancerous tumors. Broccoli sprouts also help your dog excrete toxins that could damage cells.

Serving Size:

  • Small dog (< 20 lbs): ¼-½ tsp
  • Medium to large dog (> 21 lbs): ½-1 tsp

Frequency: Limit to a few times per week. Avoid overuse, especially in dogs with thyroid conditions, due to goitrogenic in high amounts.

How to Serve:

  • Purchase fresh, organic broccoli sprouts or grow your own at home.
  • Chop finely and mix into food raw for maximum sulforaphane benefits.
  • You can lightly steam if your dog is extremely sensitive, but raw is ideal.

Important: Introduce slowly to avoid gas or bloating.

Turmeric

Benefits: As the most well-researched anti-cancer herb, turmeric has shown the ability to disrupt the development, growth, and spread of cancer in cells. Turmeric also has anti-inflammatory effects so it is often utilized to help reduce pain in conditions caused by inflammation.

Serving Size: ⅛-¼ tsp for every 10 lbs of body weight or 15mg-20mg per pound of body weight.

Frequency: Safe to feed daily. We recommend rotating toppers for variety.

How to Serve: Your dog’s body doesn’t easily absorb turmeric and its active compounds, including curcumin. Using a recipe, such as Golden Paste, can increase the bioavailability by heating curcumin, adding black pepper, and combining it with a healthy fat, such as coconut oil.

Turkey Tail Mushrooms

Benefits: Turkey tail mushrooms have the power to fight infections, boost weak immune systems, and combat malignant cell growth in pets. When dogs with a highly malignant cancer were given a compound from turkey tail mushrooms it slowed the cancer growth resulting in longer survival rates.

Serving Size: 1 tsp of cooked mushrooms per 10 lbs of body weight.

Frequency: Safe to feed daily. We recommend rotating toppers for variety.

How to Serve: You can serve your dog mushrooms 3 different ways:

  1. Using store-bought mushrooms, wash then cook them thoroughly to make them digestible for your dog.
  2. Buy dried mushrooms, soak them in water for several hours until soft, then cook them.
  3. Sprinkle Real Mushroom’s Turkey Tail powder extracts directly onto your dog’s regular meals.

Important:

  • Do not feed your dog wild mushrooms as they may be toxic.
  • Dogs can safely eat any store-bought mushrooms that are also safe for you to eat.
  • Store-bought mushrooms must be cooked because it can be difficult to digest in raw form.

Kale

Benefits: Studies show the antioxidants in dark leafy green vegetables like kale act as protective agents and help your dog’s body defend itself against disease. They stop harmful molecules from damaging the DNA that could lead to cancer. The vitamin C in kale also works as a protective substance and helps block cancer-causing compounds from developing.

Serving Size:

  • Small dog (< 20 lbs): ½-1 tsp
  • Medium dog (21-50 lbs): 1-2 tsp
  • Large dog (> 51 lbs): 1 tbsp

Frequency: Safe to feed daily. We recommend rotating toppers for variety.

How to Serve:

  • Kale is on Environmental Working Group’s The 2024 Dirty Dozen™ list. It’s best to buy organic.
  • Wash and remove stems.
  • Steam or blanch to make it easier for your dog to digest.

Blackberries

Benefits: The dark pigments that give blackberries their color have inflammation-fighting abilities important for preventing and treating cancer. These berries provide powerful antioxidants that protect cells from damage and contain ellagic acid that blocks pathways in the body that might lead to the development of cancer.

Serving Size: 2-3 fresh or frozen berries per 20 lbs of body weight.

Frequency: Safe to feed daily. We recommend rotating toppers for variety.

How to Serve:

  • Wash and chop as they may present a choking hazard for smaller dogs.
  • Feed as a healthy treat or directly on food.

Bell Peppers

Benefits: Bell peppers contain important vitamins that have anti-cancer properties, such as vitamin E that reduces inflammation and vitamin A that protects the body from harmful substances that can damage cells. They also contain natural compounds called carotenoids and phenols that work as protective shields against cell damage, which may help prevent cancer.

Serving Size:

  • Small dog (< 20 lbs): ¼ of a bell pepper
  • Medium dog (21-50 lbs): ⅓ of a bell pepper
  • Large dog (> 51 lbs): ½ of a bell pepper

Frequency: Safe to feed daily. We recommend rotating toppers for variety.

How to Serve:

  • Wash, cut out the seeds and stem, and chop into smaller pieces.
  • Dogs can eat bell peppers raw, but cooking them breaks down their cell walls to enhance antioxidant absorption.
  • Cooking them too long, especially by boiling or steaming, can lower their vitamin C levels.

Decaf Green Tea

Benefits: Tea extracts, particularly from green tea, and the polyphenols they contain have been proven to stop tumors from forming and growing in various organs when tested in animals. 

Serving Size:

  • Small dog (< 20 lbs): 2 tbsp
  • Medium dog (21-50 lbs): ¼-½ cup
  • Large dog (> 51 lbs): ½ cup to 1 cup

Frequency: Limit to 2-3 times per week.

How to Serve:

  1. Bring 3 cups of filtered water to a near boil.
  2. Add 1 tea bag and steep for 5-10 minutes.
  3. Remove tea bag and wait for tea to cool.
  4. Add appropriate serving size to dog’s food.

Important: Tea must be decaf. Caffeine is toxic to dogs.

Broccoli

Benefits: All forms of broccoli contain sulforaphane which has been well-researched for its cancer fighting benefits. Compared to the broccoli head, the stalk actually contains double the amount of this health-protective compound.

Serving Size:

  • Broccoli head: 1-2 florets per 20 lbs of body weight.
  • Stalk: ¼ tsp per 10 lbs of body weight.

Frequency: Safe to feed daily. We recommend rotating toppers for variety.

How to Serve:

  1. Wash, chop, & allow to sit for 90 minutes before feeding to increase the sulforaphane content.
  2. Cook the broccoli to make it more easily digestible for your dog.

Watercress

Benefits: Watercress is a leafy green vegetable that contains antioxidants which helps repair damaged cells, eliminates harmful chemicals in the body, and lowers the risk of cancer. It is ranked by the CDC as the #1 “Powerhouse” vegetable based on its nutrient density and bioavailability of nutrients.  

Serving Size: 1 tsp per 20 lbs of body weight.

Frequency: Safe to feed daily. We recommend rotating toppers for variety.

How to Serve: Wash, finely chop, and add to bowl.

Wild Blueberry Powder

Benefits: Feeding blueberries to your dog may not only slow down aging, but they also contain important cancer fighting phytochemicals, anthocyanosides and resveratrol. Anthocyanosides are one of the most potent antioxidants and resveratrol helps reduce inflammation. Wild blueberry powder contains higher doses of these powerful antioxidants.

Serving Size:

  • ¼ tsp per 10 lbs of body weight.
  • For the most accurate dosage, follow instructions from the brand you purchase from.

Frequency: Safe to feed daily. We recommend rotating toppers for variety.

How to Serve: Sprinkle Dr. Kendra Pope’s recommended wild blueberry powder directly onto your dog’s food.

Maitake Mushrooms

Benefits: Maitake mushrooms are known for strengthening the immune system, which is essential for overall health and may assist the body in naturally fighting against malignant growths.

Serving Size: 1 tsp of cooked mushrooms per 10 lbs of body weight.

Frequency: Safe to feed daily. We recommend rotating toppers for variety.

How to Serve: You can serve your dog mushrooms 3 different ways:

  1. Using store-bought mushrooms, wash then cook them thoroughly to make them digestible for your dog.
  2. Buy dried mushrooms, soak them in water for several hours until soft, then cook them.
  3. Sprinkle Real Mushroom’s 5 Defenders Mushrooms Blend directly onto your dog’s regular meals.

Important:

  • Do not feed your dog wild mushrooms as they may be toxic.
  • Dogs can safely eat any store-bought mushrooms that are also safe for you to eat.
  • Store-bought mushrooms must be cooked because it can be difficult to digest in raw form.

Recommended Cancer-Fighting Supplements

Click the images to view product details

Frequently Asked Questions

Q: How much of these toppers can I add to my dog’s bowl?

These toppers can be used to boost your dog’s current food using the 90/10 rule, where you feed 90% of your dog’s current food and 10% of the above toppers. Adding only 10% of the above toppers will not “unbalance” your dog’s current food. If you’d like to add more than 10% fresh food toppers, you need to ensure the fresh food you’re adding is a nutritionally complete meal.

Q: How do I calculate how much kibble to replace?

(Daily amount of kibble fed) x (% of fresh food you’re adding)

3 cups of kibble daily x 10% fresh food toppers

= 0.3 cups of kibble to remove

Dr. Kendra Pope is one of only four board-certified integrative veterinary oncologists in the U.S. She is extensively trained in herbal medicine, intravenous nutrient therapy, mistletoe therapy, and more. She is active in clinical research through her nonprofit organization, Prism Veterinary Research Institute, whose mission is to validate and legitimize integrative modalities in the treatment of cancer and chronic disease.

For more information, check out Dr. Kendra Pope’s Pet Cancer Prevention Course.

For more information:

  • 2025 Prism Pets Academy. Pet Cancer Prevention Course.
  • Raghavan M, Knapp DW, Bonney PL, Dawson MH, Glickman LT. Evaluation of the effect of dietary vegetable consumption on reducing risk of transitional cell carcinoma of the urinary bladder in Scottish Terriers. J Am Vet Med Assoc. 2005 Jul 1;227(1):94-100. doi: 10.2460/javma.2005.227.94. PMID: 16013542
  • Murillo G, Mehta RG. Cruciferous vegetables and cancer prevention. Nutr Cancer. 2001;41(1-2):17-28. doi: 10.1080/01635581.2001.9680607. PMID: 12094621.3
  • Curran KM, Bracha S, Wong CP, Beaver LM, Stevens JF, Ho E. Sulforaphane absorption and histone deacetylase activity following single dosing of broccoli sprout supplement in normal dogs. Vet Med Sci. 2018 Nov;4(4):357-363. doi: 10.1002/vms3.118. Epub 2018 Aug 17. PMID: 30117668; PMCID: PMC6236138.
  • DogCancer.com. “Curcumin for Dogs – DogCancer.com.” DogCancer.com, 9 May 2023, www.dogcancer.com/articles/supplements/curcumin-for-dogs/.
  • PetMD Editorial. “4 Botanicals That Are Natural Anti-Inflammatories for Dogs.” Petmd.com, PetMD, 8 Nov. 2016, www.petmd.com/dog/wellness/4-herbs-joint-pain-and-inflammation-pets.
  • ‌Silver, Rob. “Turkey Tail Mushrooms for Dogs | Real Mushrooms.” Real Mushrooms, 6 July 2022, www.realmushrooms.com/turkey-tail-mushroom-for-dogs/.
  • ‌Brown DC, Reetz J. Single agent polysaccharopeptide delays metastases and improves survival in naturally occurring hemangiosarcoma. Evid Based Complement Alternat Med. 2012;2012:384301. doi: 10.1155/2012/384301. Epub 2012 Sep 5. PMID: 22988473; PMCID: PMC3440946.
  • “American Institute for Cancer Research.” American Institute for Cancer Research, 29 July 2020, www.aicr.org/cancer-prevention/food-facts/dark-green-leafy-vegetables/.
  • ‌Raghavan M, Knapp DW, Bonney PL, Dawson MH, Glickman LT. Evaluation of the effect of dietary vegetable consumption on reducing risk of transitional cell carcinoma of the urinary bladder in Scottish Terriers. J Am Vet Med Assoc. 2005 Jul 1;227(1):94-100. doi: 10.2460/javma.2005.227.94. PMID: 16013542.
  • “Can Dogs Eat Kale?” Www.petmd.com, www.petmd.com/dog/nutrition/can-dogs-eat-kale.
  • DogCancer.com. “Berries for Dogs – DogCancer.com.” DogCancer.com, 2 May 2023, www.dogcancer.com/articles/diet-and-lifestyle/berries-for-dogs/.
  • ‌“Nine Vegetables That Are Healthier for You When Cooked • HRI.” Heart Research Institute, www.hri.org.au/health/your-health/nutrition/nine-vegetables-that-are-healthier-for-you-when-cooked.
  • DogCancer.com. “Bell Peppers for Dogs – DogCancer.com.” DogCancer.com, 24 May 2023, www.dogcancer.com/articles/diet-and-lifestyle/bell-peppers-for-dogs/.
  • Yang CS, Wang X, Lu G, Picinich SC. Cancer prevention by tea: animal studies, molecular mechanisms and human relevance. Nat Rev Cancer. 2009 Jun;9(6):429-39. doi: 10.1038/nrc2641. PMID: 19472429; PMCID: PMC2829848.
  • ‌Habib, Rodney, and Karen Shaw Becker. The Forever Dog Life. HarperCollins, 28 May 2024.
  • DogCancer.com. “Broccoli for Dogs – DogCancer.com.” DogCancer.com, 2 May 2023, www.dogcancer.com/articles/diet-and-lifestyle/broccoli-for-dogs/.
  • ‌Jeffery, Elizabeth H, and Anna-Sigrid Keck. “Translating Knowledge Generated by Epidemiological Andin Vitrostudies into Dietary Cancer Prevention.” Molecular Nutrition & Food Research, 7 Mar. 2008, https://doi.org/10.1002/mnfr.200700226.
  • ‌Di Noia, Jennifer. “Defining Powerhouse Fruits and Vegetables: A Nutrient Density Approach.” Preventing Chronic Disease, vol. 11, 5 June 2014, www.ncbi.nlm.nih.gov/pmc/articles/PMC4049200/, https://doi.org/10.5888/pcd11.130390.
  • ‌Chilton, Skye. “Maitake Mushroom Benefits.” Real Mushrooms, 19 Sept. 2024, www.realmushrooms.com/maitake-mushroom-benefits/.
  • Ciupka, Brittany. “Blueberry Benefits and Cancer Prevention – NFCR.” NFCR, 14 July 2020, www.nfcr.org/blog/national-blueberry-month-health-benefits-and-cancer-prevention/.

Disclosure: This post contains affiliate links. If you make a purchase through these links, The Doggy Dish™ may earn a small commission at no extra cost to you. We only recommend products we personally use and trust.

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