Look at the label, right? You got to turn the thing around. How much EPA and DHA is there per capsule? Sometimes they say per serving. And I don't get too stuffy about more EPA, more DHA. They're in nature. It's hard to vary your omega-6 intake.
Bill Harris, PhD is an internationally recognized expert on omega-3 fatty acids and fish oil. He has more than 300 publications relating to fatty acids, including omega-3s, in the medical literature.