Grapes
Every 100 g of Grapes contains 69 kcal and 17.1 g of available carbohydrate. Its glycemic index is 50 (Low), the average of 6 studies in the International GI Tables (Atkinson 2021). A typical 120 g portion has a glycemic load of 10.3 (Medium).
Medically reviewed by Dr. Wassim Habib · Last reviewed 12 October 2026
Glycemic index
Glycemic load
Calories
Protein
💡 Smart Nutritional Guidance
Consumption advice
Grapes are small and easy to overeat; put a set portion (about a small cup) in a bowl instead of eating from the bunch.
Best preparation methods
Wash them well before eating; frozen grapes make a refreshing snack instead of sweets.
Important Nutritional Note
For people with diabetes or insulin resistance, it is always recommended to consider the total glycemic load (GL) of the meal rather than relying on the glycemic index alone.
Nutrition facts
| Nutrient | Per 100 g | Per typical portion (120 g) |
|---|---|---|
| Calories | 69 kcal | 82.8 kcal |
| Protein | 0.7 g | 0.8 g |
| Carbohydrate | 18 g | 21.6 g |
| Available carbohydrate | 17.1 g | 20.5 g |
| Fat | 0.2 g | 0.2 g |
| Dietary fibre | 0.9 g | 1.1 g |
| Insulin index | 82 · clinically tested (Holt / Bao) | |
The typical portion is approximate, for comparison purposes.
Comparison & smarter alternatives
It ranks 6 of 8 measured foods in Fruit by glycemic index (lowest first).
Lower-GI alternatives:
Frequently asked questions
Are Grapes good for weight loss?
It can fit a balanced plan with portion control: a 120 g portion gives 83 kcal, and what matters most is your total daily intake and the rest of the meal.
How do Grapes affect blood sugar?
Its glycemic index is 50 (Low) according to Atkinson 2021. A typical 120 g portion has a glycemic load of 10.3 (Medium), so it is best combined with protein or fibre-rich vegetables.
What is the nutritional value of a typical portion of Grapes?
A typical 120 g portion of Grapes provides about 83 kcal, 0.8 g protein, 21.6 g carbohydrate, 0.2 g fat and 1.1 g fibre.
Approved value: average of 6 studies (range 43–59), confidence grade B. Methodology & details →
Disclaimer: This guidance is for nutritional lifestyle orientation and does not constitute a diagnostic medical device under EU Regulation MDR 2017/745.