Lime has a low glycemic index of 20 (typical range 15 to 28). A serving of 1 fruit (2" dia) (67 g) has a glycemic load of 1, which is low. Per 100 g it provides 30 calories, 0.7 g protein, 10.5 g carbohydrate (2.8 g fiber, 1.7 g sugars) and 0.2 g fat.

Serving used for glycemic load: 1 fruit (2" dia) (67 g).
| Nutrient | Per 100 g | Per serving |
|---|---|---|
| Calories | 30 kcal | 20 kcal |
| Protein | 0.7 g | 0.5 g |
| Carbohydrate | 10.5 g | 7.1 g |
| Fiber | 2.8 g | 1.9 g |
| Sugars | 1.7 g | 1.1 g |
| Fat | 0.2 g | 0.1 g |
| Saturated fat | 0 g | 0 g |
| Sodium | 2 mg | 1 mg |
| Potassium | 102 mg | 68 mg |
Other fruits with a lower glycemic load per serving:
| Food | GI | GL / serving |
|---|---|---|
| Kumquat | 30 | 0 |
| Mulberry | 28 | 0 |
Lime has a glycemic index of 20, which is low (low is 55 or under, high is 70 or over). The glycemic load of a 1 fruit (2" dia) (67 g) serving is 1, which is low.
Glycemic load is the better guide, because it accounts for portion size. A serving of lime has a glycemic load of 1 (low). Eating it with protein, fat or fiber slows absorption further. This is general information, not medical advice; people with diabetes should follow their clinician's guidance.
Lime has 30 calories per 100 g, and about 20 calories in a 1 fruit (2" dia) (67 g) serving.
Lime is NOVA group 1: unprocessed or minimally processed.
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Open the free web appGlycemic index: NutriOptio's reference table, compiled from the University of Sydney GI database and the international tables of glycemic index and glycemic load; the range reflects variation across studies, ripeness and preparation. Nutrition: USDA FoodData Central, SR Legacy, “Limes, raw” (FDC 168155). Glycemic load = GI × available carbohydrate (carbohydrate minus fiber) per serving ÷ 100. Nutri-Score computed with the 2017 general-food algorithm. NOVA group 1 follows from the NOVA definition: a whole food, only cleaned, dried or cooked.
General information, not medical advice.
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