Marine toxins are naturally occurring chemicals that can contaminate certain seafood. The seafood contaminated with these chemicals frequently looks, smells, and tastes normal. When humans eat such seafood, disease can result.
http://www.cdc.gov/ncidod/dbmd/diseaseinfo/marinetoxins_g.htm#whatsort
What do marine toxins refer to?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: What do marine toxins refer to? [/INST] \n Marine toxins are naturally occurring chemicals that can contaminate certain seafood. The seafood contaminated with these chemicals frequently looks, smells, and tastes normal. When humans eat such seafood, disease can result.
http://www.cdc.gov/ncidod/dbmd/diseaseinfo/marinetoxins_g.htm#whatsort</s>