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Whole wheat bread: carbs, carb exchanges and glycemic index

Values per 100 g: whole wheat bread.

36.7g net carbs per 100 g

2.4carb exchanges per 100 g (15 g each)

75glycemic index

These are reference values. Set your insulin dose with your doctor.

Nutrition per 100 g

Net carbs36.7 g
Fiber6.0 g
Protein12.5 g
Fat3.5 g
Energy252 kcal

Source: USDA FoodData Central, SR Legacy, record 172688 “Bread, whole-wheat, commercially prepared”. Net carbs = total carbs 42.7 g − fiber 6.0 g.

Portions

Carbs, carb units and glycemic load of typical portions
Portion1 slice32 g2 slices64 g
Net carbs, g11.723.5
Carb units (10 g)1.22.3
Carb units (12 g)1.02.0
Carb exchanges (15 g)0.81.6
Glycemic load918

The portion weights come from the USDA household measures for this food. Carb units = carbs of the portion ÷ 10, 12 or 15 g. Glycemic load = GI × carbs of the portion ÷ 100.

Glycemic index

GI 75. This is the mean that the authors give in the 2021 international GI tables.

Foods in the tables:

Atkinson FS, Brand-Miller JC, Foster-Powell K, Buyken AE, Goletzke J. International tables of glycemic index and glycemic load values 2021: a systematic review. Am J Clin Nutr. 2021;114(5):1625–1632.

Count a full plate

Soba estimates the same values from a photo of your plate: net carbs, carb units, GI and glycemic load.

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