Sourdough bread is healthier than regular bread made with commercial yeast.

Is it true that Sourdough bread is healthier than regular bread made with commercial yeast?

Partly. Some reviews and trials indicate sourdough fermentation can improve specific nutritional or metabolic measures such as glucose response, antioxidant activity and glycaemic index, while a systematic review of cardiovascular outcomes found largely no differences between sourdough and yeast bread. The evidence covers individual health markers rather than the broad claim that sourdough bread is healthier overall.

Verdict: CONTESTED PARTIAL · 4 sources for, 1 against · Last checked 3 Oct 2026

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Optimization of The Amount of Chickpea Sourdough and Dry Yeast in Wheat Bread Formulation: Evaluation of Physicochemical, Sensory and Antioxidant Properties. (n.d.). cir.nii.ac.jp. https://doi.org/10.3136/fstr.24.45

Nutritional benefits of sourdoughs: A systematic review - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1016/j.advnut.2022.10.003

Stamataki, N. S., Yanni, A. E., & Karathanos, V. T. (2017). Bread making technology influences postprandial glucose response: a review of the clinical evidence.. doi.org. https://doi.org/10.1017/S0007114517000770

Islam, M. A. & Islam, S. (2024). Sourdough Bread Quality: Facts and Factors.. doi.org. https://doi.org/10.3390/foods13132132

Use of sourdough lactobacilli and oat fibre to decrease the glycaemic index of white wheat bread. (n.d.). cir.nii.ac.jp. https://doi.org/10.1017/s0007114507772689