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Does my dog need vitamin E with fish oil? Do heart supplements help murmurs?

Updated On September 23rd, 2025

Pet's info: Dog | Cavalier King Charles Spaniel | Female | spayed | 7 years and 1 month old | 17 lbs

Hello Melanie, I’m giving Chloe fish oil by Nordic naturals per according to her weight. Should I be giving vitamin E when I give the fish oil as well? Also is there any scientific evidence that heart supplements (bio cardio, canine cardiac care) help the heart in any way by prolonging heart issues such as murmurs? please explain, thank you!

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on August 11th, 2019

Hello! If you are giving Chloe the fish oil, you don't need to give the vitamin E as well. Fish oil commonly contains vitamin E already to prevent spoilage. I wish there was any scientific evidence that heart supplements work! There is absolutely zero evidence unfortunately.

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