Calories in Sourdough Bread

145kcal per 1 slice (50 g)

289 kcal per 100 g · about 7% of a 2,000-kcal day

Sourdough's slow fermentation gives it a tangy edge and a gentler rise in blood sugar than plain white. A slice is about 145 calories.

Sourdough Bread nutrition facts

NutrientPer 100 gPer 1 slice
Calories289 kcal145 kcal
Protein11.7 g5.9 g
Carbs56.3 g28.2 g
Fat1.5 g0.8 g
Fiber2.4 g1.2 g
Sugar3.6 g1.8 g

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Values based on USDA FoodData Central reference entries. Actual nutrition varies with variety, preparation, and portion. © 2026 NibbleCal.