Only the oil from sardines and anchovies – caught exclusively under strict control off the coast of Peru and Chile – are used in PURE O3. Both species have a short life cycle and are absolutely not endangered.
Unlike bigger fish such as salmon or tuna, sardines and anchovies aren't caught especially for producing our supplements but for the animal feed industry. 95% of all sardines and anchovies caught end up as animal feed. This means that the fish will still be caught even if PURE O3 didn't use it to produce oil.