Some fish contain mercury, which at high levels can affect the development of an unborn baby's nervous system.

In addition to harboring bacteria, raw fish may contain parasites.

Sometimes, the larger fish contains letters that spell the word "Truth."

Studies show that fish from the lake contains significant levels of contamination.

Nearly all fish and shellfish contain traces of mercury.

However, some fish may contain chemicals that could pose health risks.

However, nearly all fish and shellfish contain traces of methylmercury.

Some fish contain toxins that could raise the risk of dementia.

So he was not pleased to find that his fishing grounds and fish contain high levels of mercury, a neurotoxin.

Some large fish, such as tuna (especially bluefin), can contain high levels of mercury.