Granny Smith Apple (Raw Tart Green)
Fresh Fruits & Berries · 10 specs
Direct Answer
Per 100g raw with skin, Granny Smith apples provide 50 kcal, 13.6g carbohydrates (2.8g fiber / 9.6g sugars), 0.44g protein, 0.19g fat, 9.5g malic acid tartness, and a low Glycemic Index of 34.
Source: USDA FoodData Central (FDC ID: 171688) · Last reviewed Aug 28, 2026
Specs
| Energy / Calories | 50 kcal (209 kJ) kcal |
| Carbohydrates | 13.6 g g |
| Dietary Fiber | 2.8 g (High soluble pectin content) g |
| Total Sugars | 9.6 g (Lower sugar than sweet varieties) g |
| Protein | 0.44 g g |
| Total Fat | 0.19 g g |
| Potassium | 120 mg mg |
| Vitamin C | 4.6 mg mg |
| Glycemic Index (GI) | 34 (Low GI) |
| Water Content | 86.1 % % |
High L-Malic Acid Content for Baking Stability
Granny Smith apples contain the highest concentration of L-malic acid among commercial cultivars (up to 1.0–1.2% titratable acidity), which prevents fruit slices from turning to mush when baked in pies.
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