5. Lamb liver
Another form of organ meat that is high in vitamin A, an ounce of lamb liver offers up nearly 240 percent of the recommended daily intake. Low in sodium, lamb liver is also a great source of thamin, protein, niacin, riboflavin, vitamin B6, folate, vitamin B12, iron and selenium, as well as so many other vital nutrients.
Like beef liver, livers that comes from organic, grass-fed lambs will offer the most health benefits. Also, like beef liver, you can cook lamb liver with some butter, onions, and garlic. You can also coat it in a breadcrumb mixture, lightly fry it and dip it into marinara.