Chicken breast and salmon are both elite whole-food protein sources, but they perform completely different nutritional jobs in your diet.
Chicken breast is an ultra-lean protein powerhouse providing 18.8 g protein per 100 calories with minimal fat. Salmon contains more calories from fat, but delivers essential long-chain marine omega-3s (EPA + DHA), natural Vitamin D (440 IU), and rich Vitamin B12 that poultry cannot match.
Two Distinct Nutritional Roles: Protein Density vs Marine Fats
Rather than asking which food is universally "better," smart nutritional planning looks at what each whole food brings to your weekly plate:
Chicken Breast Role
Maximum Protein Efficiency:
- 31.0 g protein per 100g cooked portion.
- Just 165 calories and 3.6g total fat.
- Rich in Niacin (B3) for cellular energy.
- Ideal for caloric deficits, cutting phases, and lean mass building.
Atlantic Salmon Role
Essential Marine Micronutrients:
- 1,960 mg of bioavailable EPA and DHA omega-3s.
- 11.0 mcg (440 IU) natural Vitamin D (55% DV).
- 2.80 mcg Vitamin B12 (117% DV) and 41.4 mcg Selenium.
- Ideal for cardiovascular, cognitive, and endocrine support.
Side-by-Side Macro & Micronutrient Snapshot (100g Cooked)
Chicken Breast
FDC ID 171534Roasted, skinless meat only (100 g cooked)
Atlantic Salmon
FDC ID 173687Baked/broiled, edible flesh only (100 g cooked)
Compare Your Serving Size
Select an equal cooked weight or evaluate equivalent 30g protein portions between chicken breast and Atlantic salmon:
Chicken Breast (100 g)
Atlantic Salmon (100 g)
Chicken Breast vs Salmon Nutrition per 100g
Complete nutrient breakdown for 100 grams of cooked edible portion (skinless roasted chicken breast vs baked Atlantic salmon flesh) from matched USDA FoodData Central records:
| Nutrient | Chicken Breast (100g) | Atlantic Salmon (100g) | Difference & Advantage |
|---|---|---|---|
| Calories | 165 kcal | 206 kcal | Chicken is 41 kcal lower (-20%) |
| Protein | 31 g | 22.1 g | Chicken has +8.9 g more protein (+40%) |
| Total Fat | 3.6 g | 12.4 g | Chicken has 8.8 g less fat (-71%) |
| Saturated Fat | 1 g | 2.5 g | Chicken has 1.5 g less saturated fat |
| Monounsaturated Fat | 1.2 g | 4.6 g | Salmon has +3.4 g heart-healthy oleic fats |
| Polyunsaturated Fat | 0.8 g | 4.3 g | Salmon has +3.5 g polyunsaturated fats |
| EPA (Eicosapentaenoic Acid) | 0.01 g | 0.86 g | Salmon provides 860 mg bioavailable EPA |
| DHA (Docosahexaenoic Acid) | 0.02 g | 1.1 g | Salmon provides 1,100 mg bioavailable DHA |
| Total EPA + DHA Omega-3 | 0.03 g | 1.96 g | Salmon delivers 65x more Marine Omega-3s |
| Carbohydrates | 0.0 g | 0.0 g | 0.0 g (Equal) |
| Cholesterol | 85 mg | 63 mg | Salmon is 22 mg lower in cholesterol |
| Sodium | 74 mg | 61 mg | Salmon is 13 mg lower (Plain unseasoned) |
| Potassium | 256 mg | 384 mg | Salmon has +128 mg more potassium (+50%) |
| Phosphorus | 228 mg | 252 mg | Salmon has +24 mg more phosphorus |
| Selenium | 27.6 mcg | 41.4 mcg | Salmon has +13.8 mcg more selenium (75% DV) |
| Niacin (B3) | 13.7 mg | 8.5 mg | Chicken provides 1.6x more Niacin |
| Vitamin B6 | 0.60 mg | 0.65 mg | Essentially equal (0.60 mg vs 0.65 mg) |
| Vitamin B12 | 0.34 mcg | 2.8 mcg | Salmon provides 8.2x more Vitamin B12 |
| Vitamin D | 0.1 mcg | 11 mcg | Salmon provides 440 IU Vitamin D (55% DV) |
| Iron | 0.43 mg | 0.38 mg | Essentially equal (< 0.05 mg difference) |
| Zinc | 0.80 mg | 0.43 mg | Chicken provides 1.8x more zinc |
EPA and DHA Omega-3 Fatty Acids: The Salmon Advantage
The most profound difference between poultry and fatty fish is the fatty acid composition.
According to the National Institutes of Health (NIH) Office of Dietary Supplements, long-chain omega-3 fatty acids: specifically EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid): are found almost exclusively in marine seafood. A single 100g serving of Atlantic salmon delivers 1.96 grams (1,960 mg) of combined EPA and DHA, providing several days' worth of essential marine fatty acids. Chicken breast contains less than 0.03 grams.
Vitamin D and Vitamin B12 Differences
Salmon is one of the rare natural whole-food sources of Vitamin D, providing 11.0 mcg (440 IU) per 100 grams (55% of the Daily Value). Vitamin D is essential for calcium absorption, bone mineralization, and immune modulation. Chicken breast contains negligible Vitamin D (0.1 mcg).
Similarly, salmon is extraordinarily rich in Vitamin B12 (cobalamin), providing 2.80 mcg per 100g (117% DV) compared to 0.34 mcg in chicken breast.
Protein per Calorie & Calories for 30g Protein
Because chicken breast is so low in fat, it achieves a far superior protein-to-calorie ratio:
- Chicken Breast: (31.0 ÷ 165) × 100 = 18.8 g protein per 100 kcal.
- Atlantic Salmon: (22.1 ÷ 206) × 100 = 10.7 g protein per 100 kcal.
To consume 30 grams of protein:
- Chicken Breast: Requires 97 g of meat and delivers only 160 calories (3.5g fat).
- Atlantic Salmon: Requires 136 g of fish and delivers 280 calories (16.8g fat, plus 2.6g EPA+DHA).
Calories and Fat Composition
Salmon contains more than 3 times more total fat than chicken breast (12.4g vs 3.6g per 100g). However, this fat should not be viewed as 'empty calories.' It is composed primarily of mono- and polyunsaturated fatty acids that support hormone production, nutrient assimilation, and cell membrane fluidity.
Atlantic Salmon vs Wild, Canned, and Smoked Products
- Wild Sockeye / Pink Salmon: Naturally leaner than farmed Atlantic salmon (~150 to 170 kcal, 5g to 8g fat per 100g).
- Smoked Salmon (Lox): Often contains 600 mg to 1,200 mg+ sodium per 100g due to salt curing.
- Canned Salmon with Bones: Delivers significant calcium (approx 200 mg per 100g) from soft edible vertebrae.
Mercury Guidelines and Cooking Temperatures (165°F vs 145°F)
FDA and EPA guidelines categorize salmon as a 'Best Choice' low-mercury fish, safely recommending 2 to 3 servings (8 to 12 oz total) per week, including for pregnant and nursing individuals.
Food safety cooking standards differ fundamentally between poultry and seafood:
- Chicken Breast: Must reach a minimum internal temperature of 165°F (73.9°C) to eliminate Salmonella and Campylobacter.
- Salmon: Reaches safety at 145°F (62.8°C), or when the flesh turns opaque and flakes easily with a fork. Cooking salmon to 165°F will cause moisture loss and dry texture.
Chicken Breast or Salmon: Which Should You Choose?
Choose Chicken Breast If:
- You are in a strict calorie deficit or cutting phase.
- You want the highest protein per calorie (18.8 g / 100 kcal).
- You need high Niacin (B3) density.
- You want an economical, versatile lean meat for high-volume meal prep.
Choose Salmon If:
- You want potent dietary EPA and DHA marine omega-3 fatty acids.
- You need natural whole-food Vitamin D (440 IU per 100g).
- You want rich Vitamin B12 and Selenium for neurological and thyroid health.
- You enjoy tender, flavorful seafood for dietary variety.
How We Compare Chicken Breast and Salmon
Both foods are evaluated using verified USDA FoodData Central SR Legacy records (FDC ID 171534 for cooked roasted chicken breast, FDC ID 173687 for cooked baked Atlantic salmon) based on 100 grams of cooked edible portion without skin or added cooking oils.
Frequently Asked Questions
Which has more protein, chicken breast or salmon?
Chicken breast provides more protein per 100 grams of cooked meat (31.0 g vs 22.1 g) and delivers significantly higher protein per calorie because it is ultra-lean.
Which has fewer calories?
Plain chicken breast is lower in calories. A 100 g cooked portion of skinless chicken breast has roughly 165 kcal compared to 206 kcal for cooked Atlantic salmon due to salmon's natural fat content.
Which has more fat?
Salmon contains considerably more total fat (12.4 g vs 3.6 g per 100 g), but the majority consists of healthy monounsaturated and marine polyunsaturated fats.
Which has more omega-3?
Salmon leads by an enormous margin, supplying approximately 1.96 grams (1,960 mg) of combined EPA and DHA omega-3 fatty acids per 100 g, whereas chicken breast provides negligible amounts.
Which has more vitamin D?
Salmon is one of the richest whole-food sources of natural Vitamin D, providing 11.0 mcg (440 IU, over 55% DV) per 100 g, while chicken breast contains less than 0.1 mcg.
Which has more vitamin B12?
Salmon provides over 8 times more Vitamin B12 (2.80 mcg vs 0.34 mcg per 100 g), exceeding 100% of the recommended Daily Value in a single 100g portion.
Which provides more protein per calorie?
Chicken breast provides 18.8 g protein per 100 calories, compared to 10.7 g protein per 100 calories for Atlantic salmon.
Is salmon healthier than chicken breast?
Neither food is universally 'healthier' because they fulfill different dietary jobs. Chicken breast provides maximum lean protein efficiency for caloric deficits, while salmon supplies essential marine omega-3s, vitamin D, and B12.
Is farmed salmon the same nutritionally as wild salmon?
Not identical. Farmed Atlantic salmon typically contains slightly more total fat and calories than wild species like Sockeye or Pink salmon, but both provide high levels of EPA and DHA.
What temperature should salmon be cooked to?
FDA guidelines state seafood should reach a minimum internal temperature of 145°F (62.8°C), whereas poultry such as chicken breast must reach 165°F (73.9°C).
Related Comparisons & Calculators
Chicken Breast vs Lean Beef →
White poultry vs lean steak: protein density, heme iron, and zinc.
Chicken Breast vs Turkey Breast →
Compare the two leanest poultry meats for protein and calories.
Chicken Breast vs Thigh →
White poultry meat vs dark meat: calories, fat, and culinary differences.
Chicken Protein Calculator →
Calculate exact protein grams for any weighed portion size.