Fish Oil and Mercury

Fish Oil and MercuryA hypothetical scenario: After reading about all the benefits of essential fatty acids, I started giving my family fish oil every day. However, I just read that supplements can have mercury just like fish itself.

Question: Do fish-oil supplements contain mercury?

Answer: Yes, it’s true that fish-oil supplements can contain some mercury.

And though the fish used for supplements (like anchovies, mackerel and sardines) are less likely to accumulate mercury since they have little toxin-absorbing fat, even low levels can build up in our bodies.

This can cause negative effects like hyperactivity, memory difficulties and headaches. Luckily, more supplement manufacturers are making mercury-free fish oils, so they’re easier to find these days.

Look for a brand which uses molecularly distilled, pharmaceutical grade fish oil. [source: Ann Louise Gittleman, Ph.D.]

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