Almost 100% of the salmon that is sold to Asia in stores is farm-raised and can contain as many as 16 more contaminants than wild salmon.
Did you realize even realize that farmed salmon are gray and not supposed to be pink (unlike their wild salmon cousins)?
Since farm raised do not consume their natural foods, they are given colouring agents that give them the salmony pink colour.
In recent studies, this colouring agent has been shown to cause a marid of human related illnesses including cancer.
If possible, consume Wild Salmon instead of the farm bred ones.