1 Salt-salt intake should be limited, but when used it should be iodised. 2  Seaweed-foods such as sushi are a good source. 3  Dairy products, fruits, vegetables, eggs, seafood and meat all contain iodine in varying quantities.4  Bread-voluntary iodine fortification of bread began in 2008 and it will be mandatory in 18 months. Salt-salt intake should be limited, but when used it should be iodised. 2  Seaweed-foods such as sushi are a good source. 3  Dairy products, fruits, vegetables, eggs, seafood and meat all contain iodine in varying quantities.