Macronutrient Breakdown
Visual distribution of energy in Chicken Breast per 100g serving.
Macronutrient Distribution
Chicken Breast Nutrition Facts
Chicken breast stands out for one simple reason: it provides a large amount of protein without bringing along much carbohydrate or fat.
A 100g serving of cooked, roasted chicken breast contains about 165 calories and 31g of protein . It also provides around 3.6g of fat and virtually no carbohydrates, making protein the dominant macronutrient in its nutrition profile.
100g of Chicken Breast at a Glance
|
Nutrient |
Amount |
|
Calories |
165 kcal |
|
Protein |
31 g |
|
Total Fat |
3.6 g |
|
Carbohydrates |
0 g |
|
Dietary Fiber |
0 g |
|
Total Sugars |
0 g |
|
Cholesterol |
85 mg |
|
Sodium |
74 mg |
|
Potassium |
256 mg |
|
Calcium |
15 mg |
|
Iron |
1 mg |
These values refer to cooked, roasted chicken breast meat without skin .
Why Chicken Breast Is So Protein-Dense
With approximately 31g of protein for 165 calories , chicken breast provides a substantial amount of protein relative to its calorie content.
Protein accounts for most of the energy in this food, while fat contributes a much smaller share and carbohydrates contribute essentially none.
This nutritional balance is why chicken breast frequently appears in meals built around a specific protein target.
If you are trying to estimate how much protein you need in a full day, NutritionSolver's Protein Calculator can provide a personalized starting estimate.
Does Chicken Breast Have Carbs?
Plain chicken breast naturally contains virtually zero carbohydrates .
This also means it contains no meaningful dietary fiber or sugar on its own.
The nutrition profile can change once chicken is breaded, glazed, marinated, coated in sauce, or prepared with carbohydrate-containing ingredients. If you are checking nutrition for a prepared chicken dish, the complete recipe matters more than the chicken alone.
How Much Fat Is in Chicken Breast?
Cooked skinless chicken breast contains approximately 3.6g of total fat per 100g .
Removing the skin keeps the fat content much lower than many skin-on chicken preparations. Cooking oil, butter, sauces, and marinades can add additional fat and calories, so the nutrition of a finished meal may differ considerably from the plain chicken values shown here.
Why Cooked and Raw Chicken Breast Have Different Calories per 100g
This is one of the most important details when reading chicken nutrition data.
The 165 calories and 31g of protein shown here refer to cooked chicken breast .
Chicken loses water as it cooks. Because the cooked meat contains less water, protein and calories become more concentrated in every 100 grams.
That means 100g of raw chicken and 100g of cooked chicken should not be treated as nutritionally identical, even when they came from the same piece of meat.
For accurate food tracking, use nutrition data that matches the state in which you weigh the chicken:
Weighed raw → use raw chicken nutrition data
Weighed cooked → use cooked chicken nutrition data
What Does a Larger Portion Provide?
The values on this page are standardized to 100g, but your actual portion may be larger or smaller.
For example, increasing the amount of plain cooked chicken breast will increase calories and protein in roughly the same proportion. A portion weighing twice as much as the 100g reference will contain roughly twice the listed nutrients.
Using grams is useful because chicken breasts vary considerably in size, so “one chicken breast” is not a consistent serving measurement.
Common Chicken Breast Nutrition Questions
How much protein is in 100g of chicken breast?+
How many calories are in 100g of chicken breast?+
Is chicken breast high in protein?+
Why does cooked chicken have more protein per 100g than raw chicken?+
Nutrition Data Reference
NutritionSolver presents values for cooked, roasted chicken breast meat per 100g using USDA food composition reference data.
Actual values can vary depending on the cut, cooking method, moisture loss, added ingredients, and whether the skin is included.