Chicken Breast vs Beef Sirloin
Chicken breast and beef sirloin are the most consumed protein sources worldwide. Chicken leads in lean protein efficiency while beef provides superior iron and B12. Your choice depends on fitness goals, budget, and dietary preferences.
Quick Verdict
Chicken breast is better for weight loss and budget. Beef sirloin wins for iron, B12, and satiety. Alternate both for optimal micronutrient coverage.
Chicken Breast (Skinless)
Per 100g cooked
Beef Sirloin (Lean)
Per 100g cooked
per 100g cooked
| Nutrient | Chicken Breast (Skinless) | Beef Sirloin (Lean) | Better |
|---|---|---|---|
| Calories | 165 kcal | 206 kcal | ◄ |
| Protein | 31g | 26g | ◄ |
| Total Fat | 3.6g | 10.6g | ◄ |
| Saturated Fat | 1g | 4.2g | ◄ |
| Carbs | 0g | 0g | Tie |
| Cholesterol | 85mg | 89mg | ◄ |
| Sodium | 74mg | 56mg | ► |
| Iron | 1mg | 2.9mg | ► |
| Calcium | 15mg | 18mg | ► |
| Potassium | 256mg | 340mg | ► |
| Vitamin B6 | 0.6mg | 0.7mg | ► |
| Vitamin B12 | 0.3mcg | 2.6mcg | ► |
Visual Comparison
Cost per Gram of Protein
Chicken Breast (Skinless): $0.028/g protein ($8.8/kg)
Beef Sirloin (Lean): $0.063/g protein ($16.5/kg)
Chicken Breast (Skinless) is 56% cheaper per gram of protein.
Which Should You Choose?
Recommendation based on your health and fitness goals
Chicken breast provides 5g more protein per 100g with 41 fewer calories and 7g less fat.
Both are excellent. Chicken has more protein per calorie, but beef provides natural creatine and more calories for bulking.
Chicken is almost half the price per kg ($8.8 vs $16.5) and cheaper per gram of protein.
Chicken breast reheats better and maintains texture. Beef can become tougher when reheated.
Beef sirloin provides more fat for keto macros while being zero-carb. The higher calorie density helps meet energy needs.
Both are widely loved. Children often prefer chicken, while adults may prefer the richer flavor of beef.
Pros & Cons
Chicken Breast (Skinless)
Pros
- +41 fewer calories per 100g
- +Much lower in saturated fat
- +More affordable per gram of protein
- +Lower cholesterol
- +Quicker to cook
Cons
- -Significantly lower iron (1.0 vs 2.9mg)
- -Less vitamin B12
- -Lower satiety factor
- -Less zinc
- -Less creatine naturally
Beef Sirloin (Lean)
Pros
- +3x more iron per serving
- +8x more vitamin B12
- +Higher satiety and fullness
- +Natural creatine source
- +Rich umami flavor
Cons
- -4x more saturated fat
- -41 more calories per 100g
- -Nearly double the cost
- -Higher environmental impact
- -Dietary guidelines suggest limiting weekly intake
Frequently Asked Questions
Is chicken breast or beef better for muscle building?
Both are excellent for muscle building. Chicken breast has more protein per calorie (ideal for lean gains), while beef provides natural creatine, more iron, and zinc which support muscle performance. Most bodybuilders include both.
Why is beef higher in iron than chicken?
Beef contains heme iron from myoglobin, a protein abundant in red meat muscle tissue. Heme iron has 15-35% absorption rate compared to non-heme iron (2-20%). This makes beef a notable source of bioavailable iron.
How much red meat do dietary guidelines suggest per week?
Many dietary guidelines suggest limiting red meat to 350-500g (12-18oz) cooked weight per week, which is about 3-4 servings. Pairing with chicken and fish throughout the week provides variety in your nutrient intake.
Is chicken or beef better for the environment?
Chicken has a significantly lower environmental impact. Producing 1kg of chicken protein generates about 6kg CO2, while beef generates 50-100kg CO2. Chicken also requires less water and land per kg of protein produced.
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This tool is for informational and nutrition logging purposes only. Data sourced from USDA FoodData Central. Not a substitute for professional dietary guidance.