Cod Liver Oil

Is Cod Liver Oil Effective?

Some cod liver oil uses have more scientific evidence than others. It seems to be effective at treating some conditions and ineffective for others (see Does Cod Liver Oil Work? for more information).

Dosing Information

The most effective and safest cod liver oil doses have not yet been established. However, some general dosing recommendations can be made based on doses used in research studies and on practical experience with the product.
(Click Cod Liver Oil Dosage for more information.)

Side Effects of Cod Liver Oil

Cod liver oil can cause several side effects, such as:
  • A fishy aftertaste
  • Bad breath
  • Belching
  • Heartburn or indigestion
  • Nausea
  • Loose stools.
(Click Cod Liver Oil Side Effects to learn more, including potentially serious side effects that you should report immediately to your healthcare provider.)

Drug Interactions

Cod liver oil can potentially interact with several medications (see Cod Liver Oil Drug Interactions).

Safety Issues

Normal doses of cod liver oil are probably safe for most people, although high doses can cause problems. Some people are more likely than others to experience problems. Therefore, you should talk with your healthcare provider prior to taking this supplement if you have:
  • A bleeding disorder
  • Low blood pressure (hypotension)
  • Any allergies, including allergies to foods (especially fish), dyes, or preservatives.
Also, let your healthcare provider know if you are:
Make sure to tell your healthcare provider about any other medications you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
(Click Is Cod Liver Oil Safe? for more information, including any available warnings and precautions.)
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Cod Liver Oil Capsules

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