All dangerous canned tuna fish should carry warning labels just like
"ingredients" and "nutrition facts." There is currently no way
someone would know that eating normal canned tuna fish could have
serious health effects especially in children, as the below SF Gate
and Wall Street Journal Articles demonstrate.
According to the FDA, white albacore is so dangerous that an adult may
eat only one 6 ounce can per week! But nowhere on the can does anyone
find this advisory! An average person might eat as many as 7 or more
cans per week as white albacore is otherwise as good of a protein
source as chicken! They would thus have 700%% the safe limit.
From:
NRDC Mercury Contamination in Fish - Learn About Mercury and Its
Effects
http://www.nrdc.org/health/effects/mercury/effects.asp
"Mercury and Human Health:
Humans risk ingesting dangerous levels of mercury when they eat
contaminated fish. Since the poison is odorless, invisible and
accumulates in the meat of the fish, it is not easy to detect and
can't be avoided by trimming off the skin or other parts.