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Sourdough Bread

Sourdough Bread

Everyday

Sourdough bread is a traditionally fermented bread leavened naturally through a symbiotic culture of wild yeast and lactic acid bacteria (starter). This slow fermentation process breaks down gluten and phytic acid, enhancing digestibility and nutrient absorption compared to conventional breads. The crusty exterior and airy crumb feature a characteristic tangy flavor, while the method typically results in a lower glycemic index and better tolerance for those with mild gluten sensitivity.

Macro Impact

A 1 slice serving contains 109 calories, 4g protein, 21g carbs, and 1g fat.

Calorie Burn

How long would it take to burn off 109 calories?
Walking3.5 mph, moderate pace
25 min
YogaModerate effort, gentle pace
18 min
SwimmingModerate effort, freestyle
14 min
Biking12-14 mph, moderate effort
11 min
StairsStair climbing, moderate pace
13 min
Running5 mph (12 min/mile)
9 min

Nutrition Facts

Serving size1 slice (40 g)
Amount per serving
Calories109
% Daily Value*
Total Fat1.0g
1%
Saturated Fat0.2g
1%
Trans Fat0.0g
Polyunsaturated Fat0.3g
Monounsaturated Fat0.1g
Cholesterol0mg
0%
Sodium241mg
10%
Total Carbohydrate21g
8%
Dietary Fiber0.9g
3%
Total Sugars2g
Includes Added Sugars0g
0%
Protein4g
Vitamin D0mcg
0%
Calcium21mg
2%
Iron2mg
9%
Potassium47mg
1%

* The % Daily Value (DV) tells you how much a nutrient in a serving contributes to a daily diet.

Nutrient Breakdown

Nutrient breakdown based on appropriate daily intake recommendations for a 175lb adult.

Carbs
Total Carbs
21 / 275 g
8%
Fiber
1 / 28 g
3%
Sugars
2 g
Added Sugars
0 / 50 g
0%
Soluble Fiber
0 g
Insoluble Fiber
0 g
Sugar Alcohols
0 g
Xylitol
0 g
Sorbitol
0 g
Other Carbohydrates
0 g
Fat
Total Fat
1 / 78 g
1%
Monounsaturated
0 / 31 g
0%
Polyunsaturated
0 / 23 g
1%
Saturated
0 / 23 g
1%
Trans
0 g
Cholesterol
0 / 300 g
0%
Omega 3
0 / 5 g
1%
Omega 6
0 / 19 g
2%
Omega 9
0 g
Protein
Protein
4 / 80 g
5%
Amino Acids
Histidine
0 / 3 g
0%
Isoleucine
0 / 2 g
0%
Leucine
0 / 3 g
0%
Lysine
0 / 2 g
0%
Methionine
0 / 1 g
0%
Phenylalanine
0 / 2 g
0%
Threonine
0 / 1 g
0%
Tryptophan
0 / 0 g
0%
Valine
0 / 2 g
0%
Arginine
0 g
Cysteine
0 g
Cystine
0 g
Tyrosine
0 g
Alanine
0 g
Aspartic Acid
0 g
Glutamic Acid
0 g
Glycine
0 g
Proline
0 g
Serine
0 g
Vitamins
Thiamine, B1
0 / 1 mg
25%
Riboflavin, B2
0 / 1 mg
14%
Niacin, B3
2 / 15 mg
13%
Pantothenic Acid, B5
0 / 5 mg
4%
Pyridoxine, B6
0 / 1 mg
3%
Biotin, B7
0 / 30 mcg
0%
Cobalamin, B12
0 / 2 mcg
0%
Folate
68 / 400 mcg
17%
Vitamin A
0 / 800 mcg
0%
Vitamin C
0 / 83 mg
0%
Vitamin D
0 / 15 mcg
0%
Vitamin E
0 / 15 mg
1%
Vitamin K
0 / 105 mcg
0%
Minerals
Calcium
21 / 1k mg
2%
Copper
0 / 1 mg
7%
Iron
2 / 13 mg
12%
Magnesium
13 / 370 mg
3%
Manganese
0 / 2 mg
11%
Phosphorous
42 / 700 mg
6%
Potassium
47 / 3k mg
2%
Selenium
11 / 55 mcg
21%
Sodium
241 / 2.3k mg
10%
Zinc
0 / 10 mg
4%
Chromium
0 / 30 mcg
0%
Molybdenum
0 / 45 mcg
0%
Iodine
0 / 150 mcg
0%
Chlorine
0 / 2.3k mg
0%
Other
Ethyl Alcohol
0 g
Water
13 g
Caffeine
0 mg
Choline
3 mg
Taurine
0 mg

References

Data on this page was sourced from a number of official governmental and non-governmental sources, including:

  1. 1.Bread, french or vienna (includes sourdough). USDA Standard Reference, Legacy. Food ID 172675.
  2. 2.Bread, French or Vienna (also sourdough). Canadian Nutrient File. Food ID 4063.

Disclaimer & Important Notices

1. Informational Purposes Only: All nutritional information provided by OpenNutrition is for general informational purposes only. Our data is explicitly not intended to replace professional medical, nutritional, or dietary advice.

2. Accuracy & Reliability: We strive to ensure accuracy and quality using authoritative sources and AI-based validation; however, we make no guarantees regarding completeness, accuracy, or timeliness. Always confirm nutritional data independently when accuracy is critical.

3. Health Decisions: Never rely solely on OpenNutrition data when making health, medical, or dietary decisions. Always consult your healthcare provider or a registered dietitian for personalized health advice.

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