GL 1.2 per piece (123 g) · GL 1 per 100 g
Tomatoes has a glycemic index of 15 (Low). One piece (123 g) adds a glycemic load of 1.2.
Reviewed Aug 6, 2026 · Sources: USDA FoodData Central #1999634 , Logi Nutrition Team · Not medical advice · Report an error
Logi · Manage Insulin Resistance
Tomatoes is one of the 11,117 foods Logi scores when you photograph a meal — with the portion.
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| Portion | Grams | GL |
|---|---|---|
| 1 medium (2-3/5" dia) | 123 g | 1.2 |
| 1 cup | 180 g | 1.8 |
| Calories | 18 kcal |
| Carbohydrates | 3.9 g |
| Sugars (Total) | 2.6 g |
| Natural | 2.6 g |
| Added | 0 g |
| Fiber | 1.2 g |
| Soluble | 0.4 g |
| Insoluble | 0.8 g |
| Protein | 0.9 g |
| Fat | 0.2 g |
| Saturated | 0.03 g |
| Unsaturated | 0.17 g |
| Sodium | 5 mg |
No EU-14 allergen listed
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Tomatoes has a low glycemic index (15), making it a good option for people with insulin resistance. It causes a slow, gradual rise in blood sugar.
Among the forms of Tomatoes in this database, Yellow tomato has the lowest glycemic load (0.5 per 100 g).
Check Tomatoes in the Logi app, with your portion.
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