Fermentation may reduce some gluten and starch in sourdough and produce a gentler blood-sugar response, but the flour used still matters.
Sourdough bread has built a reputation as the healthier loaf, and a recent report in UNIAN suggests that the praise is not entirely misplaced. Drawing on advice from three dietitians who spoke to Real Simple, the report says the long fermentation process is what sets sourdough apart from standard yeast-raised bread. During that slow rise, wild yeasts and lactic acid bacteria begin breaking down parts of the flour before the bread is even baked.
That process may make sourdough easier for some people to digest. Healthline and Cleveland Clinic both note that fermentation can reduce some of the gluten and starch in the dough, which may help explain why people who feel bloated after eating ordinary bread sometimes tolerate sourdough better. Consumer Reports makes a similar point, describing sourdough as something more complex than a basic white loaf because of the way it is made.
The same fermentation can also affect how sourdough behaves in the body after a meal. Several health publications, including Healthline, WebMD and Medical News Today, say sourdough tends to have a lower glycaemic index than many other breads, meaning it is less likely to trigger a sharp rise in blood sugar. That does not make it a miracle food, but it can be a better choice for people trying to avoid abrupt glucose spikes.
Nutritionally, sourdough still depends on the flour used to make it, so wholegrain versions will usually offer more fibre and micronutrients than white versions. Even so, the bread can provide useful amounts of minerals and B vitamins, and Consumer Reports and WebMD both point to nutrients such as calcium, potassium, magnesium and folate. The dietitians quoted in the UNIAN report also suggested practical ways to eat it, such as toasting it with avocado and eggs, or topping it with cheese and fruit, which makes sourdough less a health fad than a versatile everyday staple.
Disclaimer: This content is for informational purposes only and is not intended to be a substitute for professional medical judgment, advice, diagnosis, or treatment.
