Ready & Packaged Foods
All →Vegetables & Legumes
All →Desserts & Confectionery
All →Meat & Protein
All →Grains & Bakery
All →Beverages
All →Milk & Dairy
All →
🍞
Brown sourdough bread Calories
Whole-grain, fiber-rich bread
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
Quick answer
1 slice (medium) of Brown sourdough bread (40 g) has 96 calories. That works out to 240 calories per 100 g. It contains 18.2 g of carbs, 3.7 g of protein, 1 g of fat and 2.8 g of fiber. Its 0.7 mg of Manganese covers 29% of the Daily Value. Its glycemic index is 53 (low), so it raises blood sugar slowly.
Brown sourdough bread Nutrition Facts
Selected: 1 slice (medium) · 40 g
96
KCAL / 40G
Carbs
18.2g
· 7% DV
Protein
3.7g
· 7% DV
Fat
1g
· 1% DV
Fiber
2.8g
· 10% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 75% · Protein 15% · Fat 10%
Brown sourdough bread nutrition facts table · 1 slice (medium) (40 g)
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 96 kcal | |
| Total fat | 1 g | 1% |
| Saturated fat | 0.14 g | 1% |
| Trans fat | 0 g | |
| Sodium | 168 mg | 7% |
| Total carbohydrate | 18.2 g | 7% |
| Fiber | 2.8 g | 10% |
| Protein | 3.7 g | 7% |
Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.
Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.
Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.
Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.
Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.
Log this food in EatBetter
100,000+ people use it
- Get your daily calorie target
- Snap your meal, log it in seconds
- See every vitamin and mineral
📸 Scan the code to get the app free.
How Many Calories in 1 Slice of Brown sourdough bread?
| Serving | Amount | Calories |
|---|---|---|
| 1 slice (medium) | 40 g | 96 kcal |
| 1 slice (thin) | 25 g | 60 kcal |
| 1 slice (thick) | 55 g | 132 kcal |
| 2 slice (double) | 80 g | 192 kcal |
| 1 piece (small) | 90 g | 216 kcal |
| 100 g | 100 g | 240 kcal |
| 1 serving (medium) | 120 g | 288 kcal |
| 1 serving (large) | 180 g | 432 kcal |
| 1 piece (whole) | 500 g | 1200 kcal |
Calculated from 240 calories per 100 g.
Frequently Asked Questions About Brown sourdough bread
Is brown sourdough bread healthy?
Yes, brown sourdough bread can be a nutritious choice because it is whole-grain and fiber-rich. Its fermentation gives it a distinctive tang, but toppings such as butter or sugary spreads can change the overall balance of a meal.
Is brown sourdough bread whole wheat?
It is whole-grain, but that does not always mean it is made entirely from whole wheat. Whole-grain flour can come from different grains, so check the ingredient list if you specifically want a 100% whole-wheat loaf.
Does brown sourdough bread contain less gluten than regular bread?
No, it is not gluten-free. Fermentation may alter some gluten proteins, but brown sourdough bread still contains gluten and is not suitable for people with coeliac disease or anyone who must avoid gluten.
How is brown sourdough bread different from ordinary brown bread?
Brown sourdough bread is leavened with a fermented starter rather than relying only on baker’s yeast. That process gives it a tangier flavour and often a chewier crumb; ordinary brown bread may use yeast and have a different flour blend.
Why does brown sourdough bread taste sour?
Its tang comes from acids produced by the wild yeasts and bacteria in the sourdough starter. Longer fermentation can make the flavour more pronounced, while a mild loaf may have been fermented for less time or made with a less acidic starter.
How should you store brown sourdough bread?
Keep brown sourdough bread at room temperature in a bread box or wrapped in a clean cloth, with the cut side protected. Avoid refrigerating it, which can make it stale faster, and discard the loaf if you see mould.
Can you freeze brown sourdough bread?
Yes. Slice the loaf before freezing it in an airtight bag, so you can take out only what you need. Toast slices straight from frozen or thaw them at room temperature; avoid refreezing slices that have fully thawed.
Why is brown sourdough bread dense?
A dense crumb can result from weak starter activity, insufficient fermentation, or dough that was handled in a way that knocked out too much air. Sourdough also tends to have a chewier texture than fluffy, commercial sandwich bread.
Can you make sandwiches with brown sourdough bread?
Yes. Its firm, chewy slices hold fillings well, especially eggs, cheese, roasted vegetables, or tuna. Toasting the bread first can help keep wetter fillings from making it soggy.
Does brown sourdough bread raise blood sugar?
Yes, it can raise blood sugar because it contains carbohydrates. Fermentation does not make it blood-sugar neutral, and portion size and toppings matter; if you manage diabetes, discuss how it fits your meals with your healthcare professional.
Brown sourdough bread Vitamins & Minerals
Vitamins
B1
0.13mg · 11% DV
B3
1.64mg · 10% DV
Biotin
1.68µg · 6% DV
B2
0.06mg · 5% DV
Minerals
Manganese
0.66mg · 29% DV
Selenium
13µg · 24% DV
Phosphorus
87mg · 12% DV
Copper
0.1mg · 11% DV
Sodium
168mg · 7% DV
Potassium ⭐
106mg · 3% DV
Brown sourdough bread Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
How to Burn Off Brown sourdough bread
To burn the 96 calories in 1 slice (medium) (40 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
What is Brown sourdough bread?
Brown sourdough bread is made with darker, often whole-grain flour, water and salt, with a fermented starter leavening the dough. Sourdough baking has a long history across many bread-making cultures; its characteristic tang comes from the fermentation, while the crumb is usually pleasantly chewy.
It works well toasted at breakfast, topped with eggs or cheese, and is also a sturdy choice for sandwiches or alongside soup. Its robust flavour pairs especially well with savoury spreads and roasted vegetables. With 7.1 g of fibre per 100 g, it is a fibre-rich bread; choose a slice size that suits your meal, or add fresh vegetables for a lighter, balanced plate.
How Nutritious Is Brown sourdough bread?
Nutrient density
Medium
How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.
Satiety score
High
An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.
Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.
Is Brown sourdough bread Processed?
NOVA 2
Minimally Processed
1. Unprocessed
2. Minimally Processed
3. Processed
4. Ultra-Processed
NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.
Does Brown sourdough bread Contain Allergens?
Contains these allergens:
Which Diets Is Brown sourdough bread Good For?
Vegan
✓ Suitable
Vegetarian
✓ Suitable
Gluten-Free
— Not suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
— Not suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not suitable
Low FODMAP
— Not suitable
Brown sourdough bread Fat Profile
SATURATED
0.14g
MONOUNSATURATED
0.17g
POLYUNSATURATED
0.32g
Omega 6:3 ratio 9.7:1
Above the ideal 4:1 (9.7:1).
Compare Brown sourdough bread
Foods Similar to Brown sourdough bread
Have another question about Brown sourdough bread?
Ask the AI nutrition coach — calories, portions, alternatives and more, answered in seconds in the app.
Scan calories with your camera
Instant AI nutrition analysis
Nutrition data compiled from USDA FoodData Central and scientific sources.