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

Granola Bar vs Oatmeal: 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?

Oatmeal is generally healthier

Oatmeal comes out ahead in this comparison, winning in 4 out of 5 key nutritional categories. It has more protein (17g vs 4g), more fiber (11g vs 2g), less sugar (0g vs 12g), less sodium (2mg vs 178mg)making it the better choice for most health goals.

Quick Summary

Fewer Calories

Granola Bar

193 kcal

More Protein

Oatmeal

17g

More Fiber

Oatmeal

11g

Less Sugar

Oatmeal

0g

Visual Comparison

Caloriesper 100g
Granola Bar
193
Oatmeal
389
Proteinper 100g
Granola Bar
4g
Oatmeal
17g
Carbohydratesper 100g
Granola Bar
28g
Oatmeal
66g
Fatper 100g
Granola Bar
8g
Oatmeal
7g

Side-by-Side Nutrition Table

NutrientGranola BarOatmealDifference
Calories193kcal389kcal-196.0kcal
Protein4g17g-13.0g
Carbohydrates28g66g-38.0g
Fat8g7g+1.0g
Fiber2g11g-9.0g
Sugar12g0g+12.0g
Sodium178mg2mg+176.0mg

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

Oatmeal

Per 100g:389 calories
Per cup (150g):584 calories
Per serving (85g):331 calories

Diet Compatibility

Granola Bar

VeganVegetarianLow-Sodium

Oatmeal

High-ProteinVeganVegetarianLow-Sodium

When to Choose Granola Bar

  • Lower in calories (193 vs 389)
  • Lower in carbs (28g vs 66g)

Common Uses

Between mealsMovie nightsPartiesTravel food
View full Granola Bar nutrition →

When to Choose Oatmeal

  • Higher in protein (17g vs 4g)
  • More fiber (11g vs 2g)
  • Less sugar (0g vs 12g)
  • Lower sodium (2mg vs 178mg)

Common Uses

Side dishesBreakfastMeal baseEnergy food
View full Oatmeal nutrition →

Granola Bar vs Oatmeal: Nutritional Analysis

Oatmeal is more calorie-dense at 389 calories per 100g compared to 193 for Granola Bar, a difference of 196 calories. On the protein front, Oatmeal delivers more with 17g 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 Oatmeal tell different nutritional stories. Granola Bar provides 28g of carbohydrates, 8g of fat, and 2g of fiber per 100g, while Oatmeal contains 66g carbs, 7g fat, and 11g fiber. The higher fiber content in Oatmeal supports digestive health, helps regulate blood sugar after meals, and contributes to longer-lasting satiety. Sugar content also differs: Granola Bar contains 12g while Oatmeal has 0g 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: Oatmeal provides more protein (17g/100g), supporting muscle repair and growth.
  • For sustained energy: Oatmeal offers more fiber (11g/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 Oatmeal?

Oatmeal has more calories with 389 kcal per 100g, compared to Granola Bar with 193 kcal. That's a difference of 196 calories per 100g serving.

Is Granola Bar healthier than Oatmeal?

Based on our nutritional analysis, Oatmeal is generally the healthier choice, winning in 4 out of 5 key nutritional categories. Oatmeal has 389 calories, 17g protein, and 11g fiber per 100g. However, the best choice depends on your specific dietary goals.

What is the protein difference between Granola Bar and Oatmeal?

Oatmeal has more protein with 17g per 100g, compared to Granola Bar with 4g. Oatmeal provides 13.0g more protein per 100g serving.

Which is better for weight loss, Granola Bar or Oatmeal?

For weight loss, Granola Bar is the better choice with only 193 calories per 100g compared to 389 calories in Oatmeal. Oatmeal also offers 11g of fiber per 100g, which helps you feel fuller longer.

Does Granola Bar or Oatmeal have fewer carbs?

Granola Bar has fewer carbs with 28g per 100g, compared to Oatmeal with 66g. If you're following a low-carb diet, Granola Bar is the better option with 38.0g 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.