FRONTLINE

How Good For You is Fish Oil Really?

Clip: Season 2016 Episode 2 | 5m 32s Video has closed captioning.

Fish oil is the third most widely used supplement in the United States. But there can be a big difference when it comes to prescription-quality fish oil and the kind found in over-the-counter supplements.

Aired: 01/19/16

Rating: NR

Problems Playing Video? | Closed Captioning

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