Flank steak is made from the cow's abdominal muscles. It's one of the healthiest beef cuts—ounce for ounce, a flank steak has fewer calories and more protein than a ribeye or porterhouse. It's one of the great cuts—very lean and with a lot of flavor if you don’t overcook it and know how to slice it (across the grain). 

Nutrition Facts

Serving Size: 3 ounces
Calories: 162
Protein: 24 g
Fat: 6 g
Saturated: 3 g
Monounsaturated: 3 g
Polyunsaturated: 0 g
Carbohydrate: 0 g
Sugar: 0 g
Fiber: 0 g

Key Vitamins and Minerals

Niacin
Amount: 6.3 mg
Daily Value: 30%

Vitamin B6
Amount: .6 mg
Daily Value: 24%

Vitamin B12
Amount: 1.5 mcg
Daily Value: 24%

Phosphorus
Amount: 176 mg
Daily Value: 18%

Zinc
Amount: 4.2 mg
Daily Value: 27%

Selenium
Amount: 25 mcg
Daily Value: 36%