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Nutritional Density
Food guide

Sourdough Bread

Slow-fermented bread with a mildly acidic flavour and open crumb.

Plant-BasedFermented
Sourdough Bread, a nutrient-dense plant-based food, photographed on a plain linen surface

Nutrition per 100 g

Standardised to 100 g of sourdough bread for fair comparison. Typical serving: 2 slices (60 g) — 155 kcal per 60 g serving.

Nutrition information for Sourdough Bread
NutrientPer 100 gPer serving (60 g)Per 100 kcal
Energy258 kcal155 kcal100 kcal
Protein10.2 g6.1 g3.9 g
Carbohydrate50 g30 g19.4 g
Fat1.8 g1.1 g0.7 g
Fibre3.3 g2 g1.3 g

Figures are typical values and vary with variety, preparation and brand.

Micronutrients

Vitamins and minerals per 100 g of sourdough bread, with a typical serving and FDA Daily Value for adults.

Micronutrients for Sourdough Bread
NutrientPer 100 gPer serving (60 g)% DV
Vitamins
Vitamin A0 µg0 µg0%
Vitamin C0 mg0 mg0%
Vitamin D0 µg0 µg0%
Vitamin E0.21 mg0.13 mg1%
Vitamin K0.7 µg0.42 µg<1%
Thiamin0.71 mg0.43 mg59%
Riboflavin0.43 mg0.26 mg33%
Niacin4.8 mg2.9 mg30%
Vitamin B60.11 mg0.066 mg6%
Folate170 µg102 µg43%
Vitamin B120 µg0 µg0%
Pantothenic acid0.46 mg0.28 mg9%
Choline8 mg4.8 mg1%
Minerals
Calcium52 mg31.2 mg4%
Iron3.9 mg2.3 mg22%
Magnesium32 mg19.2 mg8%
Phosphorus105 mg63 mg8%
Potassium117 mg70.2 mg2%
Sodium602 mg361 mg26%
Zinc1 mg0.6 mg9%
Selenium28.6 µg17.2 µg52%
Copper0.15 mg0.09 mg17%
Manganese0.58 mg0.35 mg25%

Source: USDA FoodData Central — Bread, french or vienna (includes sourdough)

% DV uses FDA Daily Values for adults. Nutrients that USDA does not report for this entry are omitted. Values vary with variety, preparation and brand.

Why eat sourdough bread?

  • Long fermentation can improve mineral availability.
  • Often better tolerated than fast-risen bread.

How to include it

  • Toast and rub with garlic and olive oil.
  • Serve with soup or eggs.

Things to consider

  • The live cultures are baked off; it is not a probiotic food.
  • Wholemeal sourdough carries more fibre than white.

Educational content. This article is for general information and is not medical advice. Speak to a qualified health professional about your individual circumstances.

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