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Fish Oil

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Description

Fish oil is an oil derived from the tissues of oily fish that contains omega-3 fatty acids, which are healthy fats sourced mainly from fish and microalgae and help form cell membranes and provide energy for the body.

Summary

  • Fish oil contains omega-3 fats, which are nutrients our body needs but cannot make on its own. These fats, mainly EPA and DHA, help build cell walls and send signals, supporting a healthy heart, brain, and eyes.

  • You can get fish oil from fatty fish like salmon, mackerel, sardines, and anchovies. Cod liver oil is another source, providing EPA, DHA, and vitamin D. Algae also make EPA and DHA, while plant oils like flaxseed have ALA, which is a type of omega-3 our body can partly change into EPA and DHA.

  • Not eating enough omega-3s can cause dry skin, stiff joints, or mood changes. Low levels are linked to a higher risk of heart problems. Pregnant people with low DHA intake may have babies with weaker vision and learning skills.

  • Clinical studies show enough fish oil can cut high triglycerides by 20–50%. However, doses over 3 grams per day can thin the blood too much, raising bleeding risk. Always consult your doctor for the right dosage based on your health needs.

  • Most people only get mild stomach upset or fishy burps, which can improve if you take pills with food or keep them cold. Fish oil can boost the effect of blood thinners and blood pressure drugs, so always tell your doctor if you plan to take supplements.

Frequently Asked Questions

What is fish oil

Fish oil comes from fatty fish like salmon and mackerel. It contains omega-3 fats, which are nutrients our body needs but cannot make on its own. The main omega-3s are EPA and DHA, which are fats that help build cell walls and send signals. These fats support a healthy heart, brain, and eyes.

How do I get fish oil from my diet?

Fatty fish such as salmon, mackerel, sardines, and anchovies are the best sources of EPA and DHA. Cod liver oil provides EPA, DHA, and vitamin D, which is a nutrient for bone health. Algae make EPA and DHA too. Plant oils like flaxseed have ALA, which is a type of omega-3 our body can partly change into EPA and DHA.

How do I know if I need more of fish oil?

Our bodies cannot make omega-3 fats, so we must eat them. Not eating enough can cause dry skin, stiff joints, or mood changes. There isn’t a simple blood test for deficiency, and severe cases are rare.

What causes a lack of fish oil?

Your doctor may suggest fish oil if your blood fat called triglycerides is high, which is a type of fat in your blood. People with arthritis may use it to ease joint pain. Pregnant people often take it to help their baby’s brain and eyes develop. It’s also used after some heart procedures and for liver support.

How does a lack of fish oil affect health?

Not getting enough omega-3s doesn’t cause a classic deficiency disease like scurvy. However, low levels are linked to a higher risk of heart problems. Pregnant people with low DHA intake may have babies with weaker vision and learning skills.

What are the health benefits of taking fish oil?

Clinical studies show enough fish oil can cut high triglycerides by 20–50%. People with rheumatoid arthritis often feel less joint pain and need fewer pain pills. A prescription form of fish oil got FDA approval to lower certain heart risks in at-risk patients.

Is taking fish oil ever harmful?

Most people only get mild stomach upset or fishy burps, which can improve if you take pills with food or keep them cold. Doses over 3 g per day can thin the blood too much, raising bleeding risk. Cod liver oil also has vitamin A, which in large amounts can be toxic.

Can I take fish oil with prescription medications?

Because fish oil thins the blood, it can boost the effect of blood thinners like warfarin and aspirin, increasing bleeding risk. It may also add to the effect of blood pressure drugs. Always tell your doctor if you plan to take fish oil supplements.
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