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6 Sourdough Bread Benefits You ‘Knead’ To Know

Bacteria have a terrible reputation, to put it mildly. You can’t help but think of diseases and dread! However, not all bacteria are bad. Some of them help us make delicious healthy foods like sourdough bread – one of the healthiest types of bread out there!

The incredible texture and taste of sourdough bread are complemented by its high mineral and nutrient content. Historically, sourdough has been used to improve the quality and extend the shelf-life of bread. Regular consumption of wholemeal sourdough bread has been linked to reduced risk of coronary heart disease, diabetes, and other conditions. This article takes a deep dive into the scientific explanation of the health benefits of sourdough bread, side effects, and recipes. Keep reading.

What Is Sourdough Bread?

Anthony Puopolo, MD, Chief Medical Officer at RexMD, says, “Sourdough bread is a naturally leavened bread made using a fermented ‘starter.’ If you are familiar with the process of making something like kombucha, or sauerkraut, a similar process is used in the making of sourdough bread.”

It is quite different from our regular bread. He explains, “Without an activated yeast, the bread rises from natural bacteria in the starter. In many cases, this causes sourdough to be easier on those with gluten sensitivities. It also contains healthy bacteria and probiotics.” Probiotics are known to be gut-friendly, making sourdough bread a healthy treat for your digestive system. However, it is also loaded with other nutrients.

Nutritional Profile Of Sourdough Bread

A 100g serving of sourdough bread contains (1):

Calories 272 kcal
Proteins 10.8 g
Carbohydrates 51.9 g
Total lipids (Fat) 2.42 g
Dietary fiber 2.2 g
Calcium 52 mg
Sodium 602 mg
Potassium 117 mg
Phosphorus 105 mg
Magnesium 32 mg
Iron 3.91  mg
Niacin 4.82 mg

Alicia Galvin, RD, explains, “Sourdough bread is particularly rich in nutrients that the body can more easily absorb because the lactic acid bacteria in the bread increase the availability of nutrients like folate, potassium, and magnesium. Sourdough bread can also act as a prebiotic and enhance the microbial population in the gut.” The next section explains several other health benefits of sourdough bread. Scroll down.

6 Potential Health Benefits Of Sourdough Bread

1. Increases Bioavailability Of Nutrients

The bioavailability of nutrients is the proportion of the nutrients digested, absorbed, and metabolized by the body. The body cannot absorb and utilize all nutrients in the food. Sourdough fermentation can help reduce this nutrient waste.

The bacteria in the bread interact with the nutrients in the whole grain, solubilize them, and help the body absorb each nutrient. Moreover, the lactic acid bacteria (LAB) in the bread may also reduce certain allergens and antinutritional phytate compounds (2), (3).

2. Low Glycemic Index

Sourdough fermentation (wheat flour dough) produces lactic acid that reduces the GI of bread by delaying starch digestion and absorption. Low GI foods are beneficial for people with type 2 diabetes as they can slow down insulin secretion and help manage blood sugar levels (4), (5), (6).

The GI of 30 g serving of sourdough bread (wheat) is 54, and whole wheat bread is 71. Consuming large amounts of carbohydrates (in regular bread) causes insulin resistance and risk of diabetes.

3. May Help In Weight Management

Low-GI diets may promote weight loss by boosting satiety, reducing post-meal insulin release, and retaining insulin sensitivity. Sourdough bread contains metabolically active compounds that increase satiety by influencing gastrointestinal hormone responses. This may help you with portion control (7), (8).

4. Reduces Risk Of Cardiovascular Diseases

Consuming sourdough bread lowers inflammation and improves the cardiometabolic profile. This helps reduce the risk of metabolic syndromes associated with insulin resistance (cardiometabolic syndrome), like hypertension, unhealthy lipid levels (dyslipidemia), and abdominal fat accumulation (central adiposity) (9).

5. Rich In Dietary Fiber

Sourdough bread is rich in dietary fiber. High dietary fiber intake is associated with lower risks for coronary heart disease, stroke, hypertension, diabetes, obesity, and certain gastrointestinal diseases. Eating more fiber lowers blood pressure, blood sugar, and cholesterol levels (10).

6. May Lower Risk Of Cancer

Sourdough rye bread contains lignans, a source of cancer-protective phytoestrogens. Researchers believe that phytoestrogens from various sources (including sourbread) may reduce the risk of breast cancer. However, more scientific evidence is required to establish this claim (11).

In the past few years, food nerds have switched loyalties from whole grain bread to sourdough bread. It is old-fashioned, comforting to the palate, and a treat to the eyes. You can easily prepare it at home and consume it in multiple ways. Ahead, we have discussed ways to prepare and add sourdough bread to your diet.

How To Add Sourdough Bread to Your Diet

Keith-Thomas Ayoob, EdD, RD, FAND, says, “You can certainly use it in any way you use regular bread: sandwiches, toast, even leftover stale sourdough makes great breadcrumbs, croutons, and more.  Also, use it as your ‘grain’ or starch at dinner, instead of rice, pasta, or potatoes.”

He adds, “Bread was often considered a nice little add-on to the meal, but good sourdough can hold its own as a side dish, topped with avocado, chopped tomatoes (think bruschetta), and it makes a great grilled cheese sandwich.”

You can make it healthier than regular wheat bread.

Stacey Krawczyk, MS, RD, advises, “Since sourdough’s nutrient composition is reflective of the grain flour used to make it, you could use a 50-50 white flour-whole wheat flour blend so that you still get the great taste of sourdough but with the additional benefits of whole grains.”

She adds, “Some people may not like the full whole-grain bread texture, so blending provides the best of both worlds. For additional benefits and taste, you can also try sprouted grain sourdough bread as another option.”

How To Make Sourdough Bread

What You Need

  • 100 g sourdough starter
  • 250 g water
  • 8 g kosher salt
  • 400 g bread flour
  • Rice flour for dusting

How To Prepare

  1. Combine starter, water, salt, and bread flour to make a sticky dough.
  2. Cover with aluminum foil and let it rest for four hours at 70-75°F.
  3. Fold the dough over 3-4 times with wet hands. Wrap with foil and allow it to ferment for another two hours.
  4. Dust the banneton generously with rice flour.
  5. Spread out the dough on a lightly floured surface. Shape into a smooth ball with an unbroken surface, using just enough flour to prevent sticking.
  6. Place the smooth side down on the banneton. Pinch the rough edges of the surface toward the center to shape the dough.
  7. Cover and refrigerate for 12 hours to slow the fermentation process.
  8. Let the loaf rise in a warm spot for 3-5 hours or until it springs back and retains a slight indentation when poked with a finger.
  9. Preheat the oven to 450°F. Put parchment paper on a baking sheet.
  10. Sprinkle flour on the dough’s surface. Place the baking sheet on top of the banneton and carefully invert the dough into it.
  11. Dust off the excess rice flour. Make a shallow slit across the center of the dough by scoring it with a sharp knife. Wet the entire surface lightly.
  12. Bake the bread until it is browned or for 25 to 30 minutes. Cool it on a rack.

Popular Recipes To Try

1. Roasted Chicken with Sourdough Bread

What You Need

  • 1 whole chicken
  • 3 thick slices of sourdough bread
  • 3 garlic cloves (peeled)
  • 1 bunch of fresh thyme
  • 1 bay leaf
  • 3 tablespoons of olive oil
  • 1 cup of sour cream
  • 1 tablespoon of shallot (peeled and grated)
  • 1 teaspoon of chili pepper
  • 1 lemon (halved)
  • 1 tablespoon of lemon juice
  • 1 teaspoon of lemon zest
  • Salt as needed
  • Black pepper (freshly ground) as needed

How To Prepare

  1. Preheat the oven to 450°F.
  2. Apply salt, lemon juice, and pepper to the cavity and back of the chicken.
  3. Place the lemon peels, thyme, bay leaf, and garlic inside the cavity.
  4. Drizzle olive oil at the bottom and top of the sourdough slices and place it in a pan.
  5. Put the chicken on top of the bread slices and tie the legs with kitchen twine.
  6. Season the outside of the chicken with salt and olive oil. Cook the chicken in the preheated oven for an hour.
  7. Combine sour cream, grated shallot, and chili pepper in a small bowl to make the sauce. Mix two tablespoons of lemon juice and two tablespoons of lemon zest. Chill until needed.
  8. Flip the chicken on the bread slices.
  9. Brush the sauce evenly on the outside of the chicken, allowing it to drip down onto the bread.
  10. Put it back into the oven for 10 minutes or until the glaze turns brownish. Brush generously with more sauce and bake for another 10 minutes.
  11. Boil the remaining sauce. Stir for a minute or two as the shallots cook, and the sauce reduces slightly. Turn off heat.
  12. Place the chicken on a cutting board. Slice it and the bread pieces. Add thickened sauce to chicken and serve with toasted bread.

2. Jalapeno Cheese Dip With Sourdough Bread

What You Need

  • 1 can of jalapeno peppers (diced)
  • 1 round loaf of sourdough bread
  • 1 cup of Parmesan cheese (shredded)
  • ½ cup of shredded cheddar cheese
  • 1 cup of mayonnaise
  • 1 can of green chilies (chopped)

How To Prepare

  1. Preheat the oven to 350°F.
  2. Mix all ingredients in a bowl.
  3. Make a bowl out of the sourdough bread (cut off the top and hollow out the center). Fill it with the jalapeno mixture.
  4. Bake for 30 minutes.

Although sourdough bread is the healthiest of all types of bread out there, it is always not recommended for all.

Possible Side Effects of Sourdough Bread

Since it is a fermented product, some people may experience bloating. However,  it is considerably less than other bread (8).

Galvin says, “It does have a lower gluten load than regular bread. However, if you are celiac, have a true allergy to wheat, or a more severe form of gluten sensitivity, sourdough is not recommended because it is not gluten-free or wheat-free.”

The Final Word

Sourdough bread is more nutritious and delicious than regular bread. It is easy to digest, has a low GI, and is especially beneficial for people with diabetes and those who want to lose weight.  However, it is not gluten-free. Thus, avoid sourdough bread if you have celiac disease or gluten sensitivity.

Expert’s Answers For Readers’ Questions

Is sourdough bread inflammatory?

No. It is rich in fiber, which reduces inflammation.

Why does sourdough bread upset my stomach?

Fermented food may often cause bloating, gas, cramps, and diarrhea. It is due to the probiotic activity in the stomach.

Is sourdough food good for IBS?

Yes. Sourdough bread has a low number of FODMAP (fermentable oligo-, di-, monosaccharides) and may benefit people with IBS.

What kind of bread is low FODMAP?

Sourdough bread, white bread, cornbread are some types of low FODMAP bread.

What bread has the least amount of gluten?

Sourdough bread has the lowest amount of gluten.


Articles on StyleCraze are backed by verified information from peer-reviewed and academic research papers, reputed organizations, research institutions, and medical associations to ensure accuracy and relevance. Read our editorial policy to learn more.

  1. FoodData Central
  2. Effect of sourdough fermentation and baking process severity on dietary fibre and phenolic compounds of immature wheat flour bread
  3. Nutritional quality and nutrient bioaccessibility in sourdough bread
  4. Relevance of the Glycemic Index and Glycemic Load for Body Weight Diabetes and Cardiovascular Disease
  5. The Mediterranean way: why elderly people should eat wholewheat sourdough bread—a little known component of the Mediterranean diet and healthy food for elderly adults
  6. Glycemic index glycemic load and risk of type 2 diabetes
  7. Glycemic index and obesity
  8. Postprandial Gastrointestinal Function Differs after Acute Administration of Sourdough Compared with Brewer\’s Yeast Bakery Products in Healthy Adults
  9. Effect of consumption of ancient grain bread leavened with sourdough or with baker\’s yeast on cardio-metabolic risk parameters: a dietary intervention trial
  10. Health benefits of dietary fiber
  11. Nutrition and primary prevention of breast cancer: foods nutrients and breast cancer risk

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