The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
The takeaway is that getting sufficient levels of EPA and particularly there's 300 milligram threshold of DHA, plus, if you are interested in it and it's right for you, 200 milligrams of phosphatidylserine can be an important augment for improving the symptoms of ADHD.
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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So typically fish oils or other sources of omega-3s will have DHA and EPA and typically it's the EPA that's harder to get at sufficient levels, meaning you have to take quite a lot of fish oil in order to get above that 1000 milligram or 2000 milligram threshold to improve mood and other functions. But for sake of attention, there are 10 studies that have explored this in detail and while the EPA component is important, the most convincing studies point to the fact that getting above 300 milligrams per day of DHA is really where you start to see the attentional effects.
In reviewing the studies for this, it appears that a threshold level of 300 mg of DHA turns out to be an important inflection point.
And while the EPA component is important, the most convincing studies point to the fact that getting above 300 milligrams per day of DHA is really where you start to see the attentional effects.
This is in line with randomized controlled trials showing prenatal DHA supplementation improves attention at age 5.