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Fish oil supplements, longevity and aging.

João Pedro de Magalhães1, Michael Müller2, G Ed Rainger3

  • 1Integrative Genomics of Ageing Group, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom.

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Fish oil, rich in omega-3 fatty acids, does not extend lifespan in mice, despite potential benefits for heart disease. This study suggests fish oil is not a geroprotector for aging.

Keywords:
fish oilhealthlongevitymiceomega-3 fatty acids

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Area of Science:

  • Gerontology
  • Nutritional Science
  • Cardiovascular Health

Background:

  • Fish oil and omega-3 fatty acids are popular supplements with reported benefits for heart health and anti-inflammatory effects.
  • Previous studies in short-lived mice suggested fish oil might increase lifespan by influencing aging pathways like inflammation and oxidation.

Purpose of the Study:

  • To investigate whether fish oil supplementation acts as a geroprotector, extending lifespan in mice.
  • To challenge the hypothesis that fish oil confers longevity benefits.

Main Methods:

  • A large cohort of genetically heterogeneous mice was used across three testing sites.
  • Mice were supplemented with fish oil at both low and high dosages.
  • Lifespan was monitored in both male and female mice.

Main Results:

  • Fish oil supplementation, regardless of dosage, had no significant effect on the lifespan of male or female mice.
  • The study did not find evidence supporting fish oil as a longevity-extending intervention.

Conclusions:

  • Fish oil supplementation does not appear to slow the aging process or confer longevity benefits in mice.
  • While fish oil may offer benefits for specific age-related diseases, it is not a geroprotector.