I remember my grandmother boasting that cod liver oil was essential for health. 

The issue for me was that I was vegetarian, so I didn’t even look into it at the time. Fast forward twenty years, and I’ve researched omega-3 fatty acids in great detail. 

And my granny was correct. Well, partly. The reason that cod liver oil or other omega-3 fatty acids are good for you is actually all due to algae. 

Fish eat algae – then humans eat fish. Oily fish like salmon and anchovies are normally high in omega-3s. 

Getting your omega-3s via fish is like getting them secondhand, because microalgae are the real producers of EPA and DHA (omega-3s) - not the fish.