A study by the Irish Sea Fisheries Board (BIM) shows that mussels contain more than double the amount of iron found in red meat and more than eight times as much as found in green leaf vegetables such as cabbage.
The results were welcomed by the Scottish Shellfish Marketing Group, which called for mussels to be added to school lunch menus.
The BIM report also suggests that the high levels of iron in mussels may benefit pregnant women. Many women may have been put off eating shellfish while pregnant. However the Scottish Shellfish Marketing Group stressed there was no risk of poisoning if the fish was properly cooked.