I found lots of info on the topic, alongside claims that it also helps with the gut biome (because the probiotics survive the baking process? I think not), so I was hoping to find a trustworthy, rigorously tested affirmation.
Then I remembered Google Scholar, a subset of the Google search engine that only provides results from published scientific/scholarly studies, books, etc. The resulting search did indeed validate what I had heard.
- specific help for effective searches
- you can't always get to the full article of an item, but in many cases the abstract presented provides a nice overview of the information that will be enough
- can sometimes be hard to read, because many studies are written by scientists for scientists
A note on sourdough bread: it is difficult to find true sourdough bread, the sourdough bread sold in most stores and even bakeries is instead just soured bread: regular bread with acids and other flavoring agents added to give the taste of a sourdough without the other benefits. The only place I have found locally that produces real sourdough bread is The Old World Bakery in Bay City. They use a starter that they've proudly kept going for over 9 years. Update: Panera Bread also make a real sourdough bread , a nice regular-sized loaf, and you can order it online and choose your slicing width and just go pick it up at the local store.