O3 - What about krill oil & cod liver oil?

Krill oil has a lot less EPA & DHA per gram, which makes it a poor substitute.

Fish oil is by far the best option, PurePharma use achovies and sardines, the smallest fish in the sea. Krill fishing is also less environmental and the amount of Krill in our oceans has declined by more the 70% since the 1970’s.

The excessively high levels of vitamin A in cod liver oil can prove highly toxic. 

In addition, the amount of vitamin D is fairly low, so it’s not worth taking it for this reason. Instead, consider taking PurePharma D3 for your daily dose of vitamin D.