Breakfast Cereal vs Peanut Butter: 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?
Peanut Butter is generally healthier
Peanut Butter comes out ahead in this comparison, winning in 3 out of 5 key nutritional categories. It has more protein (25g vs 7g), less sugar (9.4g vs 24g), less sodium (459mg vs 760mg)making it the better choice for most health goals.
Quick Summary
Fewer Calories
Breakfast Cereal
379 kcal
More Protein
Peanut Butter
25g
More Fiber
Breakfast Cereal
6g
Less Sugar
Peanut Butter
9.4g
Visual Comparison
Side-by-Side Nutrition Table
| Nutrient | Breakfast Cereal | Peanut Butter | Difference |
|---|---|---|---|
| Calories | 379kcal✓ | 588kcal | -209.0kcal |
| Protein | 7g | 25g✓ | -18.0g |
| Carbohydrates | 84g | 20g✓ | +64.0g |
| Fat | 1.9g✓ | 50g | -48.1g |
| Fiber | 6g | 6g | 0.0g |
| Sugar | 24g | 9.4g✓ | +14.6g |
| Sodium | 760mg | 459mg✓ | +301.0mg |
Serving Size Comparison
All values above are per 100g. Here's how they compare in common serving sizes:
Breakfast Cereal
Peanut Butter
Diet Compatibility
Breakfast Cereal
Peanut Butter
When to Choose Breakfast Cereal
- ✓Lower in calories (379 vs 588)
- ✓More fiber (6g vs 6g)
Common Uses
When to Choose Peanut Butter
- ✓Higher in protein (25g vs 7g)
- ✓Lower in carbs (20g vs 84g)
- ✓Less sugar (9.4g vs 24g)
- ✓Lower sodium (459mg vs 760mg)
Common Uses
Breakfast Cereal vs Peanut Butter: Nutritional Analysis
Peanut Butter is more calorie-dense at 588 calories per 100g compared to 379 for Breakfast Cereal, a difference of 209 calories. On the protein front, Peanut Butter delivers more with 25g per 100g versus 7g, 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 Breakfast Cereal and Peanut Butter tell different nutritional stories. Breakfast Cereal provides 84g of carbohydrates, 1.9g of fat, and 6g of fiber per 100g, while Peanut Butter contains 20g carbs, 50g fat, and 6g fiber. Sugar content also differs: Breakfast Cereal contains 24g while Peanut Butter has 9.4g per 100g. Lower sugar options are generally preferable for blood sugar management and dental health.
Key Takeaways
- For weight management: Breakfast Cereal is the lower-calorie choice at 379 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: Breakfast Cereal offers more fiber (6g/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, Breakfast Cereal or Peanut Butter?
Peanut Butter has more calories with 588 kcal per 100g, compared to Breakfast Cereal with 379 kcal. That's a difference of 209 calories per 100g serving.
Is Breakfast Cereal healthier than Peanut Butter?
Based on our nutritional analysis, Peanut Butter is generally the healthier choice, winning in 3 out of 5 key nutritional categories. Peanut Butter has 588 calories, 25g protein, and 6g fiber per 100g. However, the best choice depends on your specific dietary goals.
What is the protein difference between Breakfast Cereal and Peanut Butter?
Peanut Butter has more protein with 25g per 100g, compared to Breakfast Cereal with 7g. Peanut Butter provides 18.0g more protein per 100g serving.
Which is better for weight loss, Breakfast Cereal or Peanut Butter?
For weight loss, Breakfast Cereal is the better choice with only 379 calories per 100g compared to 588 calories in Peanut Butter. Peanut Butter also offers 6g of fiber per 100g, which helps you feel fuller longer.
Does Breakfast Cereal or Peanut Butter have fewer carbs?
Peanut Butter has fewer carbs with 20g per 100g, compared to Breakfast Cereal with 84g. If you're following a low-carb diet, Peanut Butter is the better option with 64.0g 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.