If your muscles start swelling to superhero proportions after your next sushi meal, this might be why.
Researchers from Stony Brook University in New York have discovered bluefin tuna are carrying radioactive contamination leaked from Japan's crippled nuclear plant all the way across the Pacific to the United States, 6,000 miles away.
This is the first time a huge migrating fish has been shown to carry radioactivity such a distance, as they generally metabolise the contamination during their journey.
Radioactive: Scientists said the increased radiation found in the Pacific bluefin tuna came from Japan's Fukushima nuclear plant that was crippled by the 2011 earthquake and tsunami
Read more: http://www.dailymail.co.uk/news/article-2151368/Radioactive-bluefin-tuna-California-coast-Fukushima.html#ixzz1wZxS8MJk