We may have a new way to see if fish oil supplements are the real deal.

Scientists believe lasers could detect how much Omega 3 is in the capsule without damaging it.

So far, the results have shown they have as much as their labels claim, which flies in the face of a University of Auckland study, which showed there was only two thirds what the label said.

Dr Daniel Killeen, Marine products scientist at Plant and Food Research, joined Larry Williams this morning to explain the test. 

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