Peanuts vs Walnuts: 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?
Peanuts is generally healthier
Peanuts comes out ahead in this comparison, winning in 3 out of 5 key nutritional categories. It has fewer calories (567 vs 654), more protein (26g vs 9g), more fiber (9g vs 6.7g), making it the better choice for most health goals.
Quick Summary
Fewer Calories
Peanuts
567 kcal
More Protein
Peanuts
26g
More Fiber
Peanuts
9g
Less Sugar
Walnuts
2.6g
Visual Comparison
Side-by-Side Nutrition Table
Serving Size Comparison
All values above are per 100g. Here's how they compare in common serving sizes:
Peanuts
Walnuts
Diet Compatibility
Peanuts
Walnuts
When to Choose Peanuts
- ✓Lower in calories (567 vs 654)
- ✓Higher in protein (26g vs 9g)
- ✓More fiber (9g vs 6.7g)
Common Uses
When to Choose Walnuts
- ✓Lower in carbs (14g vs 16g)
- ✓Less sugar (2.6g vs 4.7g)
- ✓Lower sodium (2mg vs 18mg)
Common Uses
Peanuts vs Walnuts: Nutritional Analysis
Walnuts is more calorie-dense at 654 calories per 100g compared to 567 for Peanuts, a difference of 87 calories. On the protein front, Peanuts delivers more with 26g per 100g versus 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 Peanuts and Walnuts tell different nutritional stories. Peanuts provides 16g of carbohydrates, 49g of fat, and 9g of fiber per 100g, while Walnuts contains 14g carbs, 65g fat, and 6.7g fiber. The higher fiber content in Peanuts supports digestive health, helps regulate blood sugar after meals, and contributes to longer-lasting satiety. Sugar content also differs: Peanuts contains 4.7g while Walnuts has 2.6g per 100g. Lower sugar options are generally preferable for blood sugar management and dental health.
Key Takeaways
- For weight management: Peanuts is the lower-calorie choice at 567 cal/100g, making it more suitable for calorie-controlled diets.
- For muscle building: Peanuts provides more protein (26g/100g), supporting muscle repair and growth.
- For sustained energy: Peanuts offers more fiber (9g/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, Peanuts or Walnuts?
Walnuts has more calories with 654 kcal per 100g, compared to Peanuts with 567 kcal. That's a difference of 87 calories per 100g serving.
Is Peanuts healthier than Walnuts?
Based on our nutritional analysis, Peanuts is generally the healthier choice, winning in 3 out of 5 key nutritional categories. Peanuts has 567 calories, 26g protein, and 9g fiber per 100g. However, the best choice depends on your specific dietary goals.
What is the protein difference between Peanuts and Walnuts?
Peanuts has more protein with 26g per 100g, compared to Walnuts with 9g. Peanuts provides 17.0g more protein per 100g serving.
Which is better for weight loss, Peanuts or Walnuts?
For weight loss, Peanuts is the better choice with only 567 calories per 100g compared to 654 calories in Walnuts. Peanuts also offers 9g of fiber per 100g, which helps you feel fuller longer.
Does Peanuts or Walnuts have fewer carbs?
Walnuts has fewer carbs with 14g per 100g, compared to Peanuts with 16g. If you're following a low-carb diet, Walnuts is the better option with 2.0g 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.