How to live longer: Antioxidant found in 3 types of seafood may increase lifespan by '20%'

The most potent natural source of astaxanthin is a specific form of microalgae that contains far greater levels than any fish.

But krill, shrimp and crayfish, are also excellent sources of the marine antioxidant, according to the journal Marine Drugs.

The oil of krill, a small crustacean found in all of the world’s oceans, contains higher amounts of the antioxidant astaxanthin than most other fish oils.

For higher concentrations, krill oil supplements can be taken with a meal containing dietary fat, as this decreases the risk of gastrointestinal side effects.

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