Data last updated: April 2026

Grapefruit vs Protein Bar

Nutrition Comparison per 100g

Grapefruit 4
vs
6 Protein Bar

Fruits vs Supplements

Side-by-Side Nutrition Facts

Nutrient Grapefruit Protein Bar Better
Calories 42kcal 378kcal Grapefruit
Protein 0.8g 30g Protein Bar
Total Fat 0.1g 12g Grapefruit
Carbohydrates 10.7g 40g Protein Bar
Fiber 1.6g 5g Protein Bar
Sugar 6.9g 18g Grapefruit
Vitamin C 31.2mg 0mg Grapefruit
Calcium 22mg 200mg Protein Bar
Iron 0.1mg 3.5mg Protein Bar
Potassium 135mg 280mg Protein Bar

Macronutrient Breakdown

Grapefruit

Protein: 0.8g Fat: 0.1g Carbs: 10.7g

Protein Bar

Protein: 30g Fat: 12g Carbs: 40g

Data Source

Nutrition data sourced from the USDA FoodData Central SR Legacy database. All values are per 100g of the food item. Actual nutritional content may vary by preparation method, brand, and serving size.

Grapefruit vs Protein Bar — Key Takeaway

Grapefruit has 336 fewer calories per 100g than Protein Bar, making it the lighter option. For protein, Protein Bar leads with 30g per 100g. Protein Bar is the better source of fiber at 5g per 100g. Grapefruit provides 31.2mg of vitamin C.

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