Here is an alternative source of iron…yeilds about 27mg per serving.
For further information on a few meats and their iron content, visit this website http://www.bisoncentral.com/cooking-bison/nutrition-information
Bison is a very lean meat that is naturally high in iron. Most bison, to my knowledge, are never fed antibiotics or steroids. It should say so on the label.
Also, go here for some general information on the top 10 iron-rich foods.