- The highest concentration of iron is found in animal meat products, especially organ meats. A 3-ounce serving of pork liver boasts 85 percent of the recommended daily value (DV) of iron. Chicken liver is the next best source, with 70 percent DV found in a 3.5-oz. serving, according to the NIH.
- The best vegetarian sources of iron are various beans, such as soybeans and lentils. A 1-cup serving of cooked soybeans contains nearly 50 percent DV of iron, according to nutritiondata.com. Lentils have close to 40 percent DV, making them a close second for vegetable sources.













