This Week In Wellness residues of an antioxidant added to fish feed and linked to cancer has been shown to be in higher levels in Tasmanian farmed Salmon than were found in European studies before the European Union decided to ban the additive altogether, say experts who are calling for tighter regulations.

https://www.theguardian.com/environment/2022/oct/26/fish-feed-additive-banned-in-eu-found-in-tasmanian-salmon-at-concerning-levels-researchers-say