How Much Protein Is In Flank Steak?
Flank Steak is a protein-rich food. It is high in protein and rich in potassium.
Protein per 4 oz (113g)
24
g% Daily Value
Essential Amino Acids in Flank Steak
Per 4 oz (113g)
Supplies all nine essential amino acids at or above the FAO/WHO adult reference pattern.
765mg
Histidine
1090mg
Isoleucine
1907mg
Leucine
2026mg
Lysine
624mg
Methionine
947mg
Phenylalanine
957mg
Threonine
157mg
Tryptophan
1189mg
Valine
More About Flank Steak
About Protein in Flank Steak
A serving of Flank Steak (113g) contains 24g of protein, which is 48% of the recommended daily value based on a 2,000 calorie diet.
Protein is essential for building and repairing tissues, making enzymes and hormones, and supporting immune function. When planning your meals, consider that flank steak is a significant source of protein compared to other proteins.
Compare Protein in Similar Foods
See how Flank Steak compares to other proteins.
Chicken Breast
per 3 oz (85g)
26.4g
Salmon
per 3 oz (85g)
17.3g
Beef
per 3 oz (85g)
22g
Egg
per 2 large (100g)
12.6g
Source: USDA FoodData Central | FDC ID: 169433 | Last updated: 2026-03-30
Trusted & Verified Nutritional Information
All nutritional data on Food Index is sourced from official U.S. government databases and verified by nutrition experts at leading federal agencies.
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