Omega-3: what to consider when choosing fish oil?

Omega-3 fatty acids from fish are associated with a healthy heart. Those who do not eat fish sometimes consider a supplement. But not every fish oil capsule is the same.
Pay particular attention to the amount of EPA and DHA, the two fatty acids that matter. The front often shows a large milligram value for fish oil, while the active EPA and DHA are much lower.
Freshness is the second factor. Fish oil can oxidize and become rancid. A reliable manufacturer, an expiration date, and cool storage help. Those taking blood thinners should consult their doctor first.