A 3-ounce serving of roasted chicken breast contains about 24 grams of protein, making chicken one of the most protein-dense foods available. The exact amount varies by cut, whether you leave the skin on, and whether you’re weighing the meat raw or cooked.
Protein by Cut
Chicken breast gets the most attention for protein, but every cut delivers a substantial amount. Here’s what you get from each, based on USDA data:
- Breast (roasted, skinless): 24 grams of protein per 3-ounce (84g) serving
- Drumstick (skinless): 23 grams per drumstick (95g), or about 24 grams per 100g
- Wing: 20 grams per wing (85g), also roughly 24 grams per 100g
- Thigh (skinless): approximately 22–24 grams per 100g cooked
The differences between cuts are smaller than most people expect. Per 100 grams, breast, thigh, drumstick, and wing meat all land in a similar range. Breast meat is leaner, which means a higher percentage of its calories come from protein. But if your main goal is simply hitting a protein number, any cut of chicken will get you there.
Raw vs. Cooked: Why the Numbers Change
One of the most common sources of confusion is whether protein values refer to raw or cooked chicken. When chicken cooks, it loses water but not protein. That means the protein becomes more concentrated per gram of cooked meat. Roughly speaking, 100 grams of raw chicken breast has about 23 grams of protein, while 100 grams of cooked chicken breast has about 30 grams.
Chicken typically loses 25–30% of its weight during cooking, almost entirely from moisture. So if you start with 150 grams of raw breast, you’ll end up with roughly 105–110 grams of cooked meat, but the total protein stays the same. If you’re tracking macros, just be consistent: weigh everything raw, or weigh everything cooked, and use the matching nutrition values. Most food labels and the USDA database list values for cooked chicken unless stated otherwise.
How Skin Affects the Numbers
Leaving the skin on adds fat and calories without meaningfully increasing protein. The skin itself is mostly fat with a small amount of protein. A skin-on chicken breast has more total calories than a skinless one for roughly the same protein content. If you’re eating chicken primarily as a protein source and want to keep calories low, skinless is the more efficient choice. If you’re less concerned about calories, the skin won’t hurt your protein intake, it just comes with extra fat alongside it.
Chicken vs. Other Protein Sources
Chicken holds up well against other common meats. A 3-ounce serving of 93% lean ground beef provides about 25 grams of protein, compared to 23 grams for ground turkey at the same fat percentage. Chicken breast at 24 grams per 3-ounce serving sits right in the middle. Fat-free ground turkey matches the leanest ground beef at 25 grams per serving, making it the slight winner on paper, but the practical differences are minimal.
Where chicken breast stands out is its calorie efficiency. Because it’s so low in fat compared to most beef cuts, you get more protein per calorie. That’s why it shows up in nearly every meal plan focused on high protein intake. A single large chicken breast (around 170–200 grams cooked) can deliver 50 or more grams of protein in one sitting.
Chicken’s Amino Acid Profile
Protein quality matters, not just quantity. Chicken is a complete protein, meaning it contains all nine essential amino acids your body can’t produce on its own. It’s particularly rich in leucine, the amino acid that plays the biggest role in triggering muscle protein synthesis. A cup of cooked dark meat chicken provides about 3 grams of leucine, and even a standard 3-ounce serving of roasted leg meat delivers around 1.7 grams. For context, research suggests roughly 2–3 grams of leucine per meal is the threshold for maximally stimulating muscle repair and growth, and a normal chicken serving gets you there easily.
Practical Serving Sizes
Most nutrition data references a 3-ounce cooked portion, which is roughly the size of a deck of cards. That’s smaller than what most people actually eat. A typical chicken breast from a grocery store weighs 6–8 ounces raw (170–225 grams), which cooks down to about 5–6 ounces. That cooked breast delivers 40–50 grams of protein. A single drumstick gives you around 23 grams, so two drumsticks at dinner puts you near the same range as one breast.
If you’re aiming for the commonly recommended 0.7–1 gram of protein per pound of body weight for active adults, chicken makes the math straightforward. Two palm-sized servings spread across the day covers a significant portion of most people’s daily needs, regardless of which cut you prefer.