Written by CalorieData Nutrition TeamReviewed by a Registered DietitianLast Updated: March 2026

Granola Bar 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 4g), more fiber (6g vs 2g), less sugar (9.4g vs 12g), making it the better choice for most health goals.

Quick Summary

Fewer Calories

Granola Bar

193 kcal

More Protein

Peanut Butter

25g

More Fiber

Peanut Butter

6g

Less Sugar

Peanut Butter

9.4g

Visual Comparison

Caloriesper 100g
Granola Bar
193
Peanut Butter
588
Proteinper 100g
Granola Bar
4g
Peanut Butter
25g
Carbohydratesper 100g
Granola Bar
28g
Peanut Butter
20g
Fatper 100g
Granola Bar
8g
Peanut Butter
50g

Side-by-Side Nutrition Table

NutrientGranola BarPeanut ButterDifference
Calories193kcal588kcal-395.0kcal
Protein4g25g-21.0g
Carbohydrates28g20g+8.0g
Fat8g50g-42.0g
Fiber2g6g-4.0g
Sugar12g9.4g+2.6g
Sodium178mg459mg-281.0mg

Serving Size Comparison

All values above are per 100g. Here's how they compare in common serving sizes:

Granola Bar

Per 100g:193 calories
Per cup (150g):290 calories
Per serving (85g):164 calories

Peanut Butter

Per 100g:588 calories
Per cup (150g):882 calories
Per serving (85g):500 calories

Diet Compatibility

Granola Bar

VeganVegetarianLow-Sodium

Peanut Butter

High-ProteinVeganVegetarianPaleo

When to Choose Granola Bar

  • Lower in calories (193 vs 588)
  • Lower sodium (178mg vs 459mg)

Common Uses

Between mealsMovie nightsPartiesTravel food
View full Granola Bar nutrition →

When to Choose Peanut Butter

  • Higher in protein (25g vs 4g)
  • More fiber (6g vs 2g)
  • Lower in carbs (20g vs 28g)
  • Less sugar (9.4g vs 12g)

Common Uses

SnackingToppingsTrail mixBaking
View full Peanut Butter nutrition →

Granola Bar vs Peanut Butter: Nutritional Analysis

Peanut Butter is more calorie-dense at 588 calories per 100g compared to 193 for Granola Bar, a difference of 395 calories. On the protein front, Peanut Butter delivers more with 25g per 100g versus 4g, 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 Granola Bar and Peanut Butter tell different nutritional stories. Granola Bar provides 28g of carbohydrates, 8g of fat, and 2g of fiber per 100g, while Peanut Butter contains 20g carbs, 50g fat, and 6g fiber. The higher fiber content in Peanut Butter supports digestive health, helps regulate blood sugar after meals, and contributes to longer-lasting satiety. Sugar content also differs: Granola Bar contains 12g 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: Granola Bar is the lower-calorie choice at 193 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: Peanut Butter 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, Granola Bar or Peanut Butter?

Peanut Butter has more calories with 588 kcal per 100g, compared to Granola Bar with 193 kcal. That's a difference of 395 calories per 100g serving.

Is Granola Bar 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 Granola Bar and Peanut Butter?

Peanut Butter has more protein with 25g per 100g, compared to Granola Bar with 4g. Peanut Butter provides 21.0g more protein per 100g serving.

Which is better for weight loss, Granola Bar or Peanut Butter?

For weight loss, Granola Bar is the better choice with only 193 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 Granola Bar or Peanut Butter have fewer carbs?

Peanut Butter has fewer carbs with 20g per 100g, compared to Granola Bar with 28g. If you're following a low-carb diet, Peanut Butter is the better option with 8.0g fewer carbohydrates.

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.