Fish oil
hideFish oil is oil derived from the tissues of oily fish. It is recommended for a healthy diet because it contains the omega-3 fatty acids, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA), precursors to eicosanoids that reduce inflammation throughout the body. Fish do not actually produce omega-3 fatty acids, but instead accumulate them from either consuming microalgae that produce these fatty acids, as is the case with fish like herring and sardines, or, as is the case with fatty predatory fish, by eating prey fish that have accumulated omega-3 fatty acids from microalgae. Such fatty predatory fish like mackerel, lake trout, flounder, albacore tuna and salmon may be high in omega-3 fatty acids, but due to their position at the top of the food chain, these species can accumulate toxic substances (see biomagnification). For this reason, the FDA recommends limiting consumption of certain (predatory) fish species (e.g. albacore tuna, shark, and swordfish) due to high levels of toxic contaminants such as mercury, dioxin, PCBs and chlordane. More than 50 percent of the world fish oil production is fed to farmed salmon. There are vegetarian products, DHA Omega-3, made from algae available if toxic contaminants are of concern.
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News tagged with fish oil
Nanoparticle protects oil in foods from oxidation, spoilage
Nanotechnology / Nanomaterials
Dec 08, 2009 |
3 / 5 (3) |
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(PhysOrg.com) -- Using a nanoparticle from corn, a Purdue University scientist has found a way to lengthen the shelf life of many food products and sustain their health benefits.
Search results for fish oil
No Asian carp found yet in Ill. fish kill
Dec 03, 2009 |
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(AP) -- No Asian carp have been spotted so far in a Chicago canal during a massive fish kill aimed at trying to keep the giant fish out of the Great Lakes.
Study confirms untold levels of oil sands pollution on the Athabasca
Dec 07, 2009 |
5 / 5 (1) |
2
After an exhaustive study of air and water pollution along the Athabasca River and its tributaries from Fort McMurray to Lake Athabasca, researchers say pollution levels have increased as a direct result of nearby oil sands ...
Fish with attitude: Some like it hot
Dec 03, 2009 |
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Coral reef fish can undergo a personality change in warmer water, according to an intriguing new study suggesting that climate change may make some species more aggressive.
CSIRO researchers create giant waves -- virtually
Technology / Computer Sciences
Dec 03, 2009 |
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(PhysOrg.com) -- CSIRO scientists have created 'rogue waves' more than 20 metres high and smashed them into virtual oil and gas production platforms to compare different mooring designs.
Roasting Does More than Enhance Flavor in Peanuts
20 hours ago |
5 / 5 (1) |
1
(PhysOrg.com) -- Agricultural Research Service (ARS) scientists have shown that increasing roast color intensity steadily ramps up the antioxidant capacities of peanuts, peanut flour and peanut skins.
Sparkly Spiders and Photonic Fish
Dec 09, 2009 |
4 / 5 (1) |
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(PhysOrg.com) -- Scientists in Israel and the UK have uncovered the details of how certain fish and spiders create their iridescent scales and silvery skins.
Elusive protein points to mechanism behind hearing loss
Medicine & Health / Neuroscience
Dec 08, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- A serendipitous discovery of deaf zebra fish larvae has helped narrow down the function of an elusive protein necessary for hearing and balance. The work, led by Rockefeller University’s A. ...
Decision soon on closing lock to stop Asian carp
Dec 04, 2009 |
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(AP) -- A decision could come within days on whether to temporarily close a vital Chicago area shipping waterway in an increasingly desperate bid to stop the invasive Asian carp from reaching the Great Lakes, ...
Chicken of the sea? Tuna farming getting a boost
Dec 05, 2009 |
4.5 / 5 (2) |
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(AP) -- Thousands of tuna, their silver bellies bloated with fat, swim frantically around in netted areas of a small bay, stuffing themselves until they grow twice as heavy as in the wild. Is this sushi's ...
Experiment to test killing 1 owl to help another
6 hours ago |
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1
(AP) -- Scientists want to determine if killing the aggressive barred owl that has invaded old growth forests of the Northwest would help the protected spotted owl.
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