Iron
Why you need it: Proteins in our body use this metal to transport oxygen and grow cells. Most of the body’s iron is found in hemoglobin, the protein in red blood cells that carries oxygen to tissues all over the body.
Where to get it: There are two forms of dietary iron: heme iron (found in animal foods such as red meat, fish, and poultry) and nonheme iron (found in plant sources like lentils and beans). Chicken liver contains the most heme iron of any food, with 11 mg per serving, or 61% of your DV.
