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Omega-3 (EPA & DHA)
Also called: Fish oil
Essential fats that support the heart, brain, mood, skin, and a healthy inflammatory response. Important in pregnancy.
Commonly used for
- Heart health and triglycerides
- Mood
- Joint pain and inflammation
- Dry eyes
- Pregnancy and breastfeeding (DHA)
Found naturally in
- Salmon
- Sardines
- Mackerel
- Anchovies
- Flax, chia, and walnuts (plant ALA, which converts poorly)
Label red flags
- '1,000 mg fish oil' on the front, but only ~300 mg EPA + DHA on the back
- A strong fishy smell or taste, which suggests the oil has oxidized
- No mention of third-party testing for purity, heavy metals, and freshness
Check with a provider
- Taking blood thinners or antiplatelet drugs, or having surgery soon
- Fish or shellfish allergy
- History of atrial fibrillation (higher doses have been linked to increased risk)
Supplements that contain it
Brand nameProduct nameFish oil softgelsComing soon
Brand nameProduct namePrenatal DHA softgelsComing soon
Brand nameProduct nameSome multivitamin packsComing soon
Brand nameProduct nameFish oil softgelsComing soon
Brand nameProduct namePrenatal DHA softgelsComing soon
Brand nameProduct nameSome multivitamin packsComing soon
Parts of the body it affects
Explore what each area does and the conditions that can affect it.
Brain & nerves
Your brain, spinal cord, and nerves carry every signal in your body, from movement and sensation to mood and memory.
Joints
Joints let your bones move smoothly. Swelling and morning stiffness, rather than ache alone, can point to inflammation.
Illustrations: Servier Medical Art, CC BY 4.0
Wondering if your symptoms fit a pattern?
Dr. Lesher is a naturopathic doctor who specializes in women's autoimmune and chronic conditions. Since 2020, she has helped more than 900 patients overcome and heal from their conditions.