Supplements
Updated January 12, 2025. First time visitor? Start here.
👉 Links on this page marked with a 💲 may earn the site a modest commission.
🟢 Bluebonnet Brewer’s Yeast Powder
1 lb
View on Amazon 💲 | Vitacost | Bluebonnet
2 lb
View on Amazon 💲 | Vitacost | Bluebonnet | iHerb
🟢 Duralactin Feline Capsules Cat Supplement
manufacturer page Tanya’s info
View on Chewy
References and resources
- Duralactin Technical Monograph (2017). https://www.duralactin.com/wp-content/uploads/2023/04/Duralactin-Technical-Profile.pdf
🟢 Fresh Is Best Freeze-Dried Duck Livers
View on Natural Pet Warehouse | Fresh Is Best
😺 Luna Says
My internal medicine specialist said liver is a good source of iron and may help with keeping anemia away. So far, so good!
🟢 Kal D-Mannose Powder (2.5 oz)
View on Amazon 💲 | Vitacost | KAL Vitamins
😺 Luna Says
Dad says this tastes sweet, but I don’t notice it in my food. We’re hopeful it’s helping to prevent certain kinds of UTIs. I had a UTI not so long ago, and let me tell you, that was no fun!
🟢 Kan Essentials Rehmannia Eight Combination
🟢 Life Extension TMG Powder - Trimethylglycine (50 g)
View on Amazon 💲 | Vitacost | Life Extension
References and resources
- Hall JA, Jewell DE, Ephraim E (2022). Feeding cats with chronic kidney disease food supplemented with betaine and prebiotics increases total body mass and reduces uremic toxins. PLOS ONE 17(5): e0268624. doi:10.1371/journal.pone.0268624
🟢 Nature’s Answer Cornsilk Liquid Extract, Alcohol-Free (1 oz)
View on Amazon 💲 | Vitacost | Nature’s Answer | iHerb
🟢 Nature’s Way Corn Silk 1,200 mg Capsules (100 ct)
View on Amazon 💲 | Vitacost | Nature’s Way
🟢 Nordic Naturals Omega-3 Cat (2 fl. oz.)
View on Amazon 💲 | Chewy | Petco | Nordic Naturals
References and resources
- Burns K (2022). Feline Hypertrophic Cardiomyopathy and the Role of Nutrition. Today’s Veterinary Nurse. https://todaysveterinarynurse.com/nutrition/feline-hypertrophic-cardiomyopathy-and-the-role-of-nutrition/
🟢 NOW D-Mannose Powder
3 oz
View on Amazon 💲 | Vitacost | NOW Foods
6 oz
View on Amazon 💲 | Vitacost | NOW Foods
organic, 10 oz
View on Amazon 💲
🟢 NOW Neptune Krill Oil, 500 mg Softgels
60 ct
120 ct
😺 Luna Says
Dad mixes this into a bit of Fancy Feast each day as a fun little treat! He’s happy, I’m happy.
References and resources
- Burns K (2022). Feline Hypertrophic Cardiomyopathy and the Role of Nutrition. Today’s Veterinary Nurse. https://todaysveterinarynurse.com/nutrition/feline-hypertrophic-cardiomyopathy-and-the-role-of-nutrition/
🟢 NOW NutraFlora FOS Powder (4 oz)
View on Amazon 💲 | Vitacost | NOW Foods
References and resources
- Hall JA, Jewell DE, Ephraim E (2022). Feeding cats with chronic kidney disease food supplemented with betaine and prebiotics increases total body mass and reduces uremic toxins. PLOS ONE 17(5): e0268624. doi:10.1371/journal.pone.0268624
🟢 NOW Potassium Gluconate Pure Powder
😺 Luna Says
CKD kitties like me struggle to keep their potassium up. So oral supplementation is often needed. Be sure to check with your vet whether potassium gluconate or potassium citrate is best for you! And it’s very important to monitor blood potassium to make sure you don’t go too high.
🟢 NOW Taurine Pure Powder
View on Amazon 💲 | Vitacost | NOW Foods
References and resources
- Burns K (2022). Feline Hypertrophic Cardiomyopathy and the Role of Nutrition. Today’s Veterinary Nurse. https://todaysveterinarynurse.com/nutrition/feline-hypertrophic-cardiomyopathy-and-the-role-of-nutrition/
🟢 NOW Vitamin E-Oil (1 oz)
View on Amazon 💲 | Vitacost | NOW Foods | iHerb
References and resources
- “The source of vitamin E with the highest biological activity is natural vitamin E (d-alpha-tocopherol) isolated from seed oils.” — Kane E. Dietary antioxidants are important for pets. DVM360. 2004. https://www.dvm360.com/view/dietary-antioxidants-are-important-pets (retrieved 2024-12-16)
- Vitamin E Fact Sheet for Health Professionals. National Institutes of Health, Office of Dietary Supplements. 2021. https://ods.od.nih.gov/factsheets/VitaminE-HealthProfessional/
🟢 Nutramax Cosequin for Senior Cats (60 ct)
manufacturer page Tanya’s info
View on Amazon 💲 | Chewy | Petco
References and resources
- Lascelles, B.D.X., DePuy, V., Thomson, A., Hansen, B., Marcellin-Little, D.J., Biourge, V. and Bauer, J.E. (2010), Evaluation of a Therapeutic Diet for Feline Degenerative Joint Disease. Journal of Veterinary Internal Medicine, 24: 487-495. doi:10.1111/j.1939-1676.2010.0495.x
- Richter. Herbal Therapies for Osteoarthritis. Today’s Veterinary Practice. 2020. https://todaysveterinarypractice.com/integrative-alternative-medicine/herbal-therapies-for-osteoarthritis/
🟢 Nutramax Cosequin Maximum Strength (55 ct)
manufacturer page Tanya’s info
View on Amazon 💲 | Chewy | Direct
References and resources
- Lascelles, B.D.X., DePuy, V., Thomson, A., Hansen, B., Marcellin-Little, D.J., Biourge, V. and Bauer, J.E. (2010), Evaluation of a Therapeutic Diet for Feline Degenerative Joint Disease. Journal of Veterinary Internal Medicine, 24: 487-495. doi:10.1111/j.1939-1676.2010.0495.x
🟢 Nutramax Cosequin Original (80 ct)
manufacturer page Tanya’s info
References and resources
- Lascelles, B.D.X., DePuy, V., Thomson, A., Hansen, B., Marcellin-Little, D.J., Biourge, V. and Bauer, J.E. (2010), Evaluation of a Therapeutic Diet for Feline Degenerative Joint Disease. Journal of Veterinary Internal Medicine, 24: 487-495. doi:10.1111/j.1939-1676.2010.0495.x
🟢 Nutramax Cosequin PLUS Boswellia (60 ct)
manufacturer page Tanya’s info
References and resources
- Borrelli F, Capasso F, Capasso R, Ascione V, Aviello G, Longo R, Izzo AA. Effect of Boswellia serrata on intestinal motility in rodents: inhibition of diarrhoea without constipation. Br J Pharmacol. 2006 Jun;148(4):553-60. doi:10.1038/sj.bjp.0706740
- Lascelles, B.D.X., DePuy, V., Thomson, A., Hansen, B., Marcellin-Little, D.J., Biourge, V. and Bauer, J.E. (2010), Evaluation of a Therapeutic Diet for Feline Degenerative Joint Disease. Journal of Veterinary Internal Medicine, 24: 487-495. doi:10.1111/j.1939-1676.2010.0495.x
- Richter. Herbal Therapies for Osteoarthritis. Today’s Veterinary Practice. 2020. https://todaysveterinarypractice.com/integrative-alternative-medicine/herbal-therapies-for-osteoarthritis/
🟢 Nutramax Dasuquin Advanced Sprinkle Capsules
manufacturer page Tanya’s info
References and resources
- Morrison, B (2023). Cosequin vs. Dasuquin: What’s The Difference? PetMD. https://www.petmd.com/general-health/cosequin-vs-dasuquin
🟢 Nutramax Dasuquin Sprinkle Capsules (84 ct)
manufacturer page Tanya’s info
References and resources
- Morrison, B (2023). Cosequin vs. Dasuquin: What’s The Difference? PetMD. https://www.petmd.com/general-health/cosequin-vs-dasuquin
🟢 Nutrim Oat Beta-Glucan
8 oz
View on Sur
450 g
View on Sur
4 x 8 oz
View on Sur
References and resources
- Hall JA, Jewell DE, Ephraim E (2022). Feeding cats with chronic kidney disease food supplemented with betaine and prebiotics increases total body mass and reduces uremic toxins. PLOS ONE 17(5): e0268624. doi:10.1371/journal.pone.0268624
🟢 OC Raw Freeze-Dried Raw Chicken Hearts
manufacturer page Tanya’s info
View on Natural Pet Warehouse
😺 Luna Says
The first time Dad opened these up, I followed him around the house begging for a whole hour! I personally don’t like to eat these on their own, but I do enjoy having some ground up and mixed in my food. Dad likes that these help with B vitamins and iron.
🟢 Purina Calming Care (30 ct)
References and resources
- Davis H, Franco P, Gagne J, McGowan RTS, Hawley J, Lappin M. Effect of Bifidobacterium longum 999 supplementation on stress associated findings in cats with FHV-1 infection. In: 2021 ACVIM Forum Research Abstract Program. J Vet Intern Med. 2021 Nov;35(6):2943-3204. doi:10.1111/jvim.16220
- Lilly ML. Nutritional Intervention for Feline Stress. Today’s Veterinary Practice. 2022. https://todaysveterinarypractice.com/nutrition/feline-stress-nutrition/
- McGowan RTS, Barnett HR, Czarnecki-Maulden G, et al. Tapping into the “gut feelings”: impact of BL999 (Bifidobacterium longum) on anxiety in dogs. Nestlé Purina Research. 2018. https://fearfreepets.com/wp-content/uploads/delightful-downloads/2018/11/Ragen-McGowan-2018-VBS-Abstract.pdf
🟢 Purina Hydra Care, 3 oz
manufacturer page Tanya’s info
12 ct
View on Chewy
36 ct
😺 Luna Says
The vet says this may help stimulate me to drink more water. And hydration is super important for CKD kitties like me! I do not like this enough to drink it up as-is, as the instructions suggest… but I’ll tolerate it mixed into food.
References and resources
- Zanghi, B. M., Gerheart, L., & Gardner, C. L. (2018). Effects of a nutrient-enriched water on water intake and indices of hydration in healthy domestic cats fed a dry kibble diet. American Journal of Veterinary Research, 79(7), 733-744. doi:10.2460/ajvr.79.7.733
- Zanghi, B. M., Wils-Plotz, E., DeGeer, S., & Gardner, C. L. (2018). Effects of a nutrient-enriched water with and without poultry flavoring on water intake, urine specific gravity, and urine output in healthy domestic cats fed a dry kibble diet. American Journal of Veterinary Research, 79(11), 1150-1159. doi:10.2460/ajvr.79.11.1150
🟢 Rx Vitamins Formula CV Capsules Heart Supplement (90 ct)
🛑 This item has cautions. See the references and resources.
View on Amazon 💲 | Chewy | VetRxDirect | Rx Vitamins
References and resources
- “Do no use simultaneously with anticoagulants, antihypertensive, vasodilators, or if suffering from ulcers, diabetes and when pregnant or breastfeeding.” — Cunha J. Forskolin. https://www.rxlist.com/forskolin/generic-drug.htm (retrieved 2024-10-20)
- “Because supplementation with Coleus forskohlii extract or forskolin has been noted to reduce blood pressure, increase stomach acid levels, and inhibit platelet aggregation, it should be used with caution by people with hypotension (low blood pressure) or who are taking antihypertensive (blood-pressure-lowering) drugs, people with blood clotting disorders or who are taking blood thinning medication, and people with stomach ulcers.” — Damianou A, Milazzo N (2024). Coleus forskohlii. https://examine.com/supplements/coleus-forskohlii/#dosage-information (retrieved 2024-10-20)
- “Forskolin should be avoided in patients with polycystic kidney disease.” — Forskolin. https://www.drugs.com/npc/forskolin.html (retrieved 2024-10-20)
🟢 Super Snouts Joint Power (Green-Lipped Mussel)
75 g
View on Chewy | Super Snouts
150 g
View on Chewy | Super Snouts
😺 Luna Says
According to Dad, this smells potent, but I like it mixed in food.
References and resources
- Lascelles, B.D.X., DePuy, V., Thomson, A., Hansen, B., Marcellin-Little, D.J., Biourge, V. and Bauer, J.E. (2010), Evaluation of a Therapeutic Diet for Feline Degenerative Joint Disease. Journal of Veterinary Internal Medicine, 24: 487-495. doi:10.1111/j.1939-1676.2010.0495.x
🟢 ThorneVET CurcuVET-SA150 Powder
View on ThorneVET
😺 Luna Says
Dad thinks this is good for me, but I have no thoughts on the matter. I guess I don’t notice it mixed into food. Apparently this particular product has some kind of new-fangled process that makes it more “bioavailable.” Whatevs.
References and resources
- Richter. Herbal Therapies for Osteoarthritis. Today’s Veterinary Practice. 2020. https://todaysveterinarypractice.com/integrative-alternative-medicine/herbal-therapies-for-osteoarthritis/
🟢 VetFood HemoActiv (60 capsules)
View on VetFood
🟢 Vetoquinol Renal K+ (Powder)
manufacturer page Tanya’s info
View on Chewy
😺 Luna Says
Before Dad knew what he was doing (as if he does now!), we once had to go to the ER for hypokalemia. That was not much fun. This got my potassium up fast. I take it every day now. Definitely get the powder, not the gel. I don’t notice the powder when added to my food.
🟢 Vetoquinol Zylkene Calming Supplement (75 mg)
14 ct
30 ct
60 ct
View on Chewy
120 ct
References and resources
- Beata C, Beaumont-Graff E, Coll V, Cordel J, Marion M, Massal N, Marlois N, Tauzin J. Effect of alpha-casozepine (Zylkene) on anxiety in cats. Journal of Veterinary Behavior. 2007;2(2):40-46. doi:10.1016/j.jveb.2007.02.002
- Landsberg G, Milgram B, Mougeot I, Kelly S, de Rivera C. Therapeutic effects of an alpha-casozepine and L-tryptophan supplemented diet on fear and anxiety in the cat. J Feline Med Surg. 2017 Jun;19(6):594-602. doi:10.1177/1098612X16669399
🟢 Vital Essentials Freeze-Dried Raw Chicken Hearts
manufacturer page Tanya’s info
View on Chewy
😺 Luna Says
Another option for chicken hearts! Yum.
🟢 VRS flo cat (powder, 90 g)
Promote optimal urinary tract health and function.
View on VRS Health
😺 Luna Says
Please be aware this product contains a small amount of cranberry.
🟢 worksSOwell 1-TDC Periodontal & Joint Health
30 ct
View on Amazon 💲 | Chewy | worksSOwell
60 ct
View on Amazon 💲 | Chewy | worksSOwell
120 ct
View on Amazon 💲 | Chewy | worksSOwell
References and resources
- Lopes Kubitza FM, Anthony JMG. Topical oral 1-tetradecanol complex in the treatment of periodontal diseases in cats. Journal of Feline Medicine and Surgery. 2019;21(12):1141-1148. doi:10.1177/1098612X18820734
- Lopes Kubitza FM, Anthony JMG. Topical oral 1-tetradecanol complex in the treatment of periodontal diseases in cats. Journal of Feline Medicine and Surgery. 2019;21(12):1141-1148. doi:10.1177/1098612X18820734
🟢 Zoetis Pet-Tinic (4 oz bottle)
manufacturer page Tanya’s info
View on Amazon 💲 | Chewy | VetRxDirect