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Extras

Video thumbnail: FRONTLINE "Supplements and Safety" - Preview

FRONTLINE

"Supplements and Safety" - Preview

An investigation into the hidden dangers of vitamins and supplements.

"Supplements and Safety" - Preview

Video thumbnail: FRONTLINE How Good For You is Fish Oil Really?

FRONTLINE

How Good For You is Fish Oil Really?

Fish oil available in over-the-counter supplements might not always be worth the cost.

How Good For You is Fish Oil Really?

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