Studies have shown that people eating fish more frequently have lower blood pressure, suffer less fatal heart attacks and have a protective effect against colorectal cancers.
A pescatarian diet is associated with lower risk for dementia, depression, anxiety and ADHD. The EPA and DHA found in fatty fish have a neuroprotective effect against anxiety and depression.
Fish eaters have nearly the same carbon emissions profile as strict vegetarians. Wild-caught fish require no land, no freshwater, and have a much lower impact on wildlife. No marine fish has ever gone extinct due to fishing. Wild-caught fish feed and grow on their own, thus they have the lowest emissions among animal proteins.