Is Sourdough Bread Healthier Than Regular Bread?
August 25, 2025


Sourdough bread is a tasty, nutritious alternative to conventional bread, offering distinct health benefits. Unlike regular bread, sourdough is made with a fermented starter of flour and water. This living mixture gives sourdough bread its unique flavor and health benefits.
Read on to learn more.
Improved Digestion and Less Bloating
Fermentation makes sourdough bread easier to digest by breaking down carbohydrates that are poorly absorbed in the small intestine. This can make sourdough a good choice for many people, even those with mild gluten sensitivities.
Better Blood Sugar Control
Fermentation lowers the glycemic index of sourdough bread, reducing spikes in blood sugar. This makes sourdough a better option than regular bread for people managing diabetes or insulin resistance.
Improved Nutrient Absorption
The fermentation process helps release minerals like iron, zinc and magnesium from the flour, making them easier for your body to absorb.
Gut Health Support
Fermentation converts some of the starch in the flour into resistant starch – a type of fiber that slows digestion in the small intestine and increases good gut bacteria. This supports a balanced gut microbiome, which supports better digestion, a stronger immune system and improved mental health.
Heart Health Support
When made with whole grains, sourdough bread supports heart health. The fiber helps lower cholesterol levels and blood pressure. Additionally, the improved mineral absorption from the fermentation process supports cardiovascular function.
Make Your Own Sourdough Starter
For home bakers, making your own starter and sourdough bread from scratch is the healthiest option. Once the starter is established, it can be stored in the refrigerator. If regularly fed with more flour and water, sourdough starter can be kept alive indefinitely.
For non-bakers, look for the following when buying sourdough bread from a grocery store or bakery:
- Check the ingredient list. Ensure it’s made with starter culture and doesn’t contain commercial yeast or additives.
- Choose sourdough made with whole-grain flours for optimal fiber and nutrition. Nutrient-dense flours like spelt or rye can further boost the nutritional value of the bread.
- Watch out for sodium. Some sourdough breads can be high in salt so check the label, especially if you’re monitoring sodium intake for health reasons.
Tags: Diet and Nutrition, Nutrition