The data has been extracted from the USDA National Nutrient Database for Standard Reference Release 22 from September 2009 which contains all the nutritional data for well over 7,000 food items. Unfortunately you can't just download the database and do a quick sort on Iron content to give you the best Iron Rich Foods. Actually you can, but the problem is that the list you get won't be very helpful in your daily life as the top items would be things like freeze dried parsley, dried thyme, beluga meat, cumin seed and all kinds of other foods you wouldn't eat in large enough quantities to help you load up on Iron.
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