Is sourdough bread healthier than regular bread?

Sourdough bread is easier to digest due to fermentation and has a lower glycemic index.

What makes sourdough bread rise?

Sourdough utilizes wild yeast from the environment to naturally leaven the bread.

Yes, you can freeze sourdough bread for later use.

Grains

Artisan sourdough bread with a tangy flavor and chewy texture.

Per 100 g

250 kcal

1 slice

70 kcal

(28 g)

Protein	Carbs	Fat
9 g / 100g	50 g / 100g	1 g / 100g

Where the calories come from

Protein 15% · Carbs 81% · Fat 4%

Share of energy: 4 kcal per gram of protein and carbs, 9 kcal per gram of fat.

1 slice (28 g, 70 kcal) is 4% of a 2,000 kcal day. 2,000 kcal is the reference day used on nutrition labels, not a personal target.
Burning 1 slice takes about 17 min of brisk walking. Estimate for a 70 kg adult walking briskly (about 4 kcal a minute).

Sourdough Bread is number 6 of 6 by calories per 100 g, lowest first. The similar foods average 137 kcal per 100 g.

Food	kcal / 100 g	Protein / 100 g
Nutty Barley Salad	120	4 g
Turmeric Rice Salad	130	3 g
Wild Rice Pilaf with Cranberries	140	4 g
Apple Cinnamon Quinoa	143	4.1 g
Bulgur and Roasted Veggie Bowl	150	5 g
Sourdough Bread	250	9 g

Nutrition data updated June 12, 2026.

Serving	Grams	Calories
1 slice	28 g	70 kcal
2 slices	56 g	140 kcal

8/10

A nutritious option for toast and sandwiches.

Is sourdough bread healthier than regular bread?: Sourdough bread is easier to digest due to fermentation and has a lower glycemic index.
What makes sourdough bread rise?: Sourdough utilizes wild yeast from the environment to naturally leaven the bread.
Can I freeze sourdough bread?: Yes, you can freeze sourdough bread for later use.

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