Beef typically provides around 20–21 g protein per 100 g raw when referring to a lean cut. A 150 g raw serving therefore provides roughly 30–31 g. Exact values change with the cut, fat level and whether the table refers to raw or cooked meat.

How much protein is in beef?

These amounts are calculated from FEN's lean-beef reference. A particular cut may differ, and cooked weight should not be substituted directly for raw weight.

Why the cut matters

There is no single composition for “beef”. Muscle, intramuscular fat, external fat and trimming change energy and nutrient proportions. Lean cuts contain less fat than a highly marbled ribeye or large bone-in steak.

Raw and cooked: be careful with 100 grams

Meat loses water during cooking. Therefore 100 g of cooked beef can show more protein by weight than 100 g raw. Cooking has not created protein; there is simply less water in the final weight. Always compare foods in the same state.

Do all cuts contain the same protein?

Protein differences are often smaller than fat differences. A very lean cut may show slightly more protein per 100 g because less of its weight is fat. A marbled ribeye remains protein-rich but has a different macronutrient distribution.

Fillet, ribeye and bone-in steak

• Lean cuts: often around 20–23 g per 100 g raw.
• Ribeye: can be similar, but marbling changes the proportion.
• Bone-in steaks: bone and external fat affect the stated serving weight.
• Minced beef: fat percentage varies widely.

Is beef protein complete?

Yes. It contains all essential amino acids and is considered high-quality protein. Beef is not the only good protein source; eggs, dairy, fish and pulses also contribute.

Protein does not mean “better food”

Two foods may contain similar protein while differing in fat, iron, sodium, fibre, vitamins and minerals. See our guide to beef nutrients for the wider picture.

Does cooking destroy protein?

Heat denatures proteins, but denaturation does not make them disappear. Small amounts may be lost in juices, while the biggest change per 100 g comes from water loss.

Beef versus other meats

Across fresh meats, protein differences are often less dramatic than fat differences. Fair comparisons with chicken, pork or lamb require the same food state and cuts with similar fat levels.

Frequently asked questions

How much protein is in 100 g of beef?

FEN lists 20.7 g per 100 g for lean raw beef.

How much protein is in a 150 g steak?

About 31 g using the lean raw-beef reference.

Does cooked beef have more protein?

It can show more per 100 g because water is lost; cooking does not create protein.

Which cut has the most protein?

Lean cuts tend to have a slightly higher proportion because they contain less fat.

Does minced beef contain the same protein as steak?

Not necessarily; it depends strongly on the fat percentage.

Source

Reference from the Spanish Nutrition Foundation: 20.7 g protein per 100 g of lean raw beef.

How to read a meat nutrition label

For packaged meat, check whether information is given per 100 g as sold and pay particular attention to protein, total fat and saturated fat. For unpackaged fresh meat, food-composition tables are useful references but cannot describe the exact composition of every individual piece.

Prepared burgers, marinades and other processed meat products can differ substantially and may contain salt, carbohydrates or other ingredients not naturally present in fresh meat. Compare fresh meat with fresh meat, not with a formulated meat product.

Real serving size matters

Per-100-g data make comparisons easier, but people eat servings that may be larger or smaller. A 150 g steak does not provide the same amount as 100 g, and a large bone-in steak may include bone in its listed weight. To estimate a meal, use edible weight and match the raw or cooked state used by the nutrition table.

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