Peanut Butter vs Black Beans: Nutrition Comparison
Which is healthier? Compare calories, protein, carbs, and more
Complete side-by-side nutrition comparison per 100g serving | Updated 2026
Which is Healthier?
Black Beans is generally healthier
Black Beans comes out ahead in this comparison, winning in 4 out of 5 key nutritional categories. It has fewer calories (132 vs 588), more fiber (8.7g vs 6g), less sugar (0.3g vs 9.4g), less sodium (1mg vs 459mg)making it the better choice for most health goals.
Quick Summary
Fewer Calories
Black Beans
132 kcal
More Protein
Peanut Butter
25g
More Fiber
Black Beans
8.7g
Less Sugar
Black Beans
0.3g
Visual Comparison
Side-by-Side Nutrition Table
| Nutrient | Peanut Butter | Black Beans | Difference |
|---|---|---|---|
| Calories | 588kcal | 132kcal✓ | +456.0kcal |
| Protein | 25g✓ | 8.9g | +16.1g |
| Carbohydrates | 20g✓ | 24g | -4.0g |
| Fat | 50g | 0.5g✓ | +49.5g |
| Fiber | 6g | 8.7g✓ | -2.7g |
| Sugar | 9.4g | 0.3g✓ | +9.1g |
| Sodium | 459mg | 1mg✓ | +458.0mg |
Serving Size Comparison
All values above are per 100g. Here's how they compare in common serving sizes:
Peanut Butter
Black Beans
Diet Compatibility
Peanut Butter
Black Beans
When to Choose Peanut Butter
- ✓Higher in protein (25g vs 8.9g)
- ✓Lower in carbs (20g vs 24g)
Common Uses
When to Choose Black Beans
- ✓Lower in calories (132 vs 588)
- ✓More fiber (8.7g vs 6g)
- ✓Less sugar (0.3g vs 9.4g)
- ✓Lower sodium (1mg vs 459mg)
Common Uses
Peanut Butter vs Black Beans: Nutritional Analysis
Peanut Butter is more calorie-dense at 588 calories per 100g compared to 132 for Black Beans, a difference of 456 calories. On the protein front, Peanut Butter delivers more with 25g per 100g versus 8.9g, which matters for muscle maintenance, satiety, and overall metabolic health. These differences become meaningful when you consider how each food fits into your daily dietary pattern rather than looking at any single nutrient in isolation.
Macronutrient Breakdown
The macronutrient profiles of Peanut Butter and Black Beans tell different nutritional stories. Peanut Butter provides 20g of carbohydrates, 50g of fat, and 6g of fiber per 100g, while Black Beans contains 24g carbs, 0.5g fat, and 8.7g fiber. The higher fiber content in Black Beans supports digestive health, helps regulate blood sugar after meals, and contributes to longer-lasting satiety. Sugar content also differs: Peanut Butter contains 9.4g while Black Beans has 0.3g per 100g. Lower sugar options are generally preferable for blood sugar management and dental health.
Key Takeaways
- For weight management: Black Beans is the lower-calorie choice at 132 cal/100g, making it more suitable for calorie-controlled diets.
- For muscle building: Peanut Butter provides more protein (25g/100g), supporting muscle repair and growth.
- For sustained energy: Black Beans offers more fiber (8.7g/100g), which slows digestion and provides steadier energy release.
- Overall: Neither food is universally "better" than the other. The right choice depends on your specific nutritional goals, meal context, and dietary preferences. Both can play a role in a balanced diet.
Frequently Asked Questions
Which has more calories, Peanut Butter or Black Beans?
Peanut Butter has more calories with 588 kcal per 100g, compared to Black Beans with 132 kcal. That's a difference of 456 calories per 100g serving.
Is Peanut Butter healthier than Black Beans?
Based on our nutritional analysis, Black Beans is generally the healthier choice, winning in 4 out of 5 key nutritional categories. Black Beans has 132 calories, 8.9g protein, and 8.7g fiber per 100g. However, the best choice depends on your specific dietary goals.
What is the protein difference between Peanut Butter and Black Beans?
Peanut Butter has more protein with 25g per 100g, compared to Black Beans with 8.9g. Peanut Butter provides 16.1g more protein per 100g serving.
Which is better for weight loss, Peanut Butter or Black Beans?
For weight loss, Black Beans is the better choice with only 132 calories per 100g compared to 588 calories in Peanut Butter. Black Beans also offers 8.7g of fiber per 100g, which helps you feel fuller longer.
Does Peanut Butter or Black Beans have fewer carbs?
Peanut Butter has fewer carbs with 20g per 100g, compared to Black Beans with 24g. If you're following a low-carb diet, Peanut Butter is the better option with 4.0g fewer carbohydrates.
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About Our Data
All nutrition data in this comparison is sourced from the USDA FoodData Central, the official food composition database maintained by the U.S. Department of Agriculture. Values are based on 100g servings for accurate comparison.
Health Disclaimer: This comparison is for informational purposes only and is not intended as medical or dietary advice. Nutritional needs vary by individual. The best food choice depends on your personal health goals, dietary requirements, and preferences. Consult a healthcare provider or registered dietitian for personalized nutrition guidance.