Our Vegan DHA is derived from a unique plant-based form of DHA. It is also 100% sustainable with no fishy aftertaste. The algae we use are grown in a controlled environment, allowing us to be sure that we have an integrated, controlled and sustainable supply (independent of marine biomass), that is also naturally free from contaminants. Reassuringly, over 100 studies have been undertaken using this source, demonstrating both its safety and efficacy. These algae are an integral part of the marine food chain, being eaten by small organisms such as plankton and krill, which in turn are eaten by larger fish.