Chicken Breast (skinless)
1 cooked breast (140g)Protein per 100g31.0g
Calories per 100g165
Fat per 100g3.6g
Carbs per 100g0.0g
Fiber per 100g0.0g
Leucine (per serving, est.)2400mg
Typical cost$
Quality 0.94
high-DIAAS complete animal protein
ketolow-carbgluten-freedairy-freepaleo
Why Chicken Breast (skinless) shows up in protein-forward diets
The default reference point for 'lean protein' in nutrition science because it delivers a lot of protein per calorie with almost no fat. It's bland by design — the payoff is that it takes on any marinade without a fight.
Serving-size math
A 1 cooked breast (140g) portion delivers 43.4g of protein and roughly 231 calories. Scaled per 100 calories, that works out to 18.79g of protein — useful for comparing against other foods on a calorie-matched basis rather than a weight-matched one.
Prep tip
Pound to even thickness before cooking; a 3/4-inch breast cooked to 165°F internal stays juicy, a full-inch breast usually doesn't.
Best for
- cutting
- meal prep
- high-volume eating
Frequently asked
How much protein is in chicken breast (skinless)?
31.0g per 100g, or 43.4g per 1 cooked breast (140g).
Is chicken breast (skinless) a complete protein?
Yes — it's rated a complete, high-quality protein source (high-DIAAS complete animal protein).