What about all the mercury?' Your questions about gorging on tinned fish, answered

A recent Q&A focused on canned fish tackles the two questions people raise most often: mercury and whether it’s safe to eat daily. Two registered dietitians advise that daily consumption isn’t recommended for everyone, citing possible high sodium in some products and concerns about mercury exposure. They specifically caution against eating tinned albacore or yellowfin tuna every day, while saying smaller fish such as sardines, mackerel and herring are generally fine more frequently. The U.S. FDA advises high-risk groups—pregnant people and young children—to limit higher-mercury fish like albacore tuna. The discussion also covers wild-caught versus farm-raised differences and whether fish is packed in water or oil.