There is a great article about hemachromatosis: http://www.irondisorders.org/Websites/idi/files/Content/854256/DietRecommendations.pdf
While leafy greens have a lot of iron in comparison to other foods, meats have high amounts too. Leafy greens have a type of iron that is not absorbed as well as the type of iron that meats have. You can rest assure that you can continue to have your leafy greens in moderate amounts. Always check with your dietitian for more tailored plan for your current condition.