Babies, toddlers and young children typically consume high amounts of cereals, teething biscuits and other items made from rice, which contain mercury and other heavy metals. (westonaprice.org)
However, fish can unfortunately also contain mercury or other contaminants that are potentially harmful for both mother and baby. (babygaga.com)
Almost all fish contains mercury, but some has less than others. (newkidscenter.com)