fish oil

noun

: a fatty oil from the bodies of various fishes (such as menhaden or sardines) that contains large amounts of unsaturated fatty acids and is used as a dietary supplement and in making various products (such as cosmetics and paints)

Examples of fish oil in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Add more omega-3 fish oil and vitamin D to your diet. Sarah Hudgens, Health, 19 June 2025 Taking fish oil consistently allows omega-3 fatty acids to accumulate in your bloodstream and tissues. Lindsay Curtis, Verywell Health, 12 June 2025 Farmed salmon production is projected to grow by 40% by 2033, yet fishmeal and fish oil production is forecast to rise by only 9% and 12% respectively over roughly the same period, accordign to United Nations data. Felicia Jackson, Forbes.com, 22 May 2025 There’s also strong evidence that fish oil can help with heart health by reducing blood triglyceride levels and improving high-density lipoprotein, known as good cholesterol. Sara Novak, Discover Magazine, 13 Dec. 2024 See All Example Sentences for fish oil

Word History

First Known Use

1785, in the meaning defined above

Time Traveler
The first known use of fish oil was in 1785

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Cite this Entry

“Fish oil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fish%20oil. Accessed 2 Jul. 2025.

Medical Definition

fish oil

noun
: a fatty oil that is obtained from oily fish (such as herring or menhaden), contains large amounts of unsaturated fatty acids, and is used as a dietary supplement and in making various products (such as protective coatings, cosmetics, and animal feed)
Scientists learned some time ago that there are significant health benefits from consuming omega-3 fatty acids, which are found mostly in fish oils, algal oils, and linseed oil.Felicia M. Willis, Today's Chemist at Work

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