Could olive oil’s hidden compounds be the key to a healthier gut? New research uncovers how olive-derived bioactives ...

Cod liver oil is rich in important nutrients, but the supplements have potential risks. Experts discuss the benefits, side effects, and dosage.

Cod liver oil is one particular type of fish oil that's especially high in healthy, polyunsaturated fats known as omega-3s and omega-6s. But doctors say it comes with both benefits and risks.