Sourdough, Inflammation, and Me: A Baker’s Look at Food as Medicine

A Baker, Not a Doctor

I want to begin with something important.

I am not a doctor.

I am not a registered dietitian or medical professional.

I am a woman in her sixties who found her way back to life and faith through flour, water, salt, and time. I am a home baker who listens closely to people’s stories and pays attention to how food makes us feel.

What I share here is not medical advice. It is simply my experience as a baker who is curious about the health benefits of long‑fermented sourdough and who has started reading what the science is beginning to say.

Please talk with your healthcare provider before making any decisions about your health, especially if you have medical conditions, allergies, or specific dietary needs.

What I Hear at the Table

Over the past year, I have lost count of how many times someone has said to me:

“I can’t eat most bread, but your sourdough feels different.”
“I usually bloat with bread, but this doesn’t bother me as much.”
“I thought I had to give up bread, and now I can enjoy it again.”

I have noticed some of the same things in my own life. Long‑fermented sourdough seems gentler on my body than many store‑bought loaves. That does not mean sourdough is safe or right for everyone. It does not erase gluten sensitivities or celiac disease. But it has made me curious.

So I started reading.

What the Research Is Starting to Say

Recently, I came across a scientific review article available through the National Institutes of Health (NIH) database. It was published in 2025 in the Journal of Inflammation Research and explored how sourdough fermentation may relate to inflammation and gut health.

You can read it here if you like digging into the details:
https://pmc.ncbi.nlm.nih.gov/articles/PMC11978714/

The authors looked at existing studies and suggested that long fermentation and specific lactic acid bacteria in sourdough can change certain compounds in wheat. These changes may affect how our bodies respond, including in ways that could be relevant to inflammation and the gut. They are careful to say that more research is needed. It is not a magic fix. But it is interesting.

Around the same time, I started following the work of Dr. William Li, a physician who writes and speaks about “food as medicine.” In one of his overviews, he talks about how certain foods and food preparations can support the body’s natural defense systems: immunity, blood vessels, the microbiome, and more.

You can read his overview here:
https://drwilliamli.com/an-overview-of-food-as-medicine-to-fight-disease/

He does not focus only on sourdough, but his work supports an idea that resonates with me deeply. The way we prepare food matters. Slow, traditional methods, whole ingredients, and fermentation are not just “old‑fashioned.” They may, in some cases, be kinder to our bodies.

Again, I am not qualified to interpret his work as a professional. I am just a baker who finds it encouraging that thoughtful people in medicine are paying attention to what many of us notice day to day in our kitchens.

What I Notice in My Own Kitchen

Science is important. So is lived experience.

In my kitchen, I work with long fermentation. That means the dough rests for many hours, giving the wild yeast and lactic acid bacteria time to do their work. During that time, they change the structure of the dough in ways we can taste and feel:

• The flavor deepens.

• The texture becomes more complex.

• The bread often keeps longer without added preservatives.

Some researchers are suggesting that this fermentation may also affect things like gluten structure, FODMAP content, and bioavailability of certain nutrients. The 2025 review article hints at these possibilities. Dr. Li’s work on food as medicine supports the idea that food can play a real role in how we feel and how our bodies function.

In my life and in the lives of some of my customers, long‑fermented sourdough seems to be easier to live with than many fast‑made breads. That does not mean it is a cure. It does not mean it will help everyone. But it is enough to keep my curiosity awake and my commitment to slow methods strong.

Why This Matters to Me as a Baker

I care about this for a simple reason. I do not just want to make bread that looks pretty on a shelf. I want to bake bread that honors the bodies and lives of the people who eat it.

Knowing that there is early research suggesting possible benefits of sourdough fermentation encourages me in what I am already doing:

• Using long, natural fermentation

• Choosing high‑quality flours and ingredients

• Avoiding unnecessary additives

• Listening to how people feel after they eat my bread

I will always leave diagnosis and treatment to professionals. But inside my little circle of responsibility, I can choose to bake in a way that aligns with what we are slowly learning about food and health.

A Gentle Invitation

If you are interested in this topic, I encourage you to:

• Read the Journal of Inflammation Research article for yourself

• Explore some of Dr. William Li’s writing and talks

• Pay attention to how different breads and foods make you feel

• Speak with your doctor or nutrition professional if you have questions about what is right for your body

I am not here to make health claims. I am here as a baker who believes that food can be one part of a gentler, more intentional way of living in our bodies. Sourdough has been that for me. It has been a tool for healing, not just emotionally and spiritually, but physically as well.

I will keep reading. I will keep baking. I will keep listening to your stories and my own. And I will keep doing my best to make bread that nourishes more than just hunger.

Warmly,
Kathy
Art of The Crumb