Sourdough’s keto and vegan credentials - The Bread & Butter Project (2024)

Have you gone keto or vegan – or are you considering making the switch?

These two lifestyle diets are among the hottest food trends right now.

They seem like direct opposites: while keto is about cutting out the carbs and upping your fat and protein, vegan says ‘no’ to all animal products. But both require a bit of rethinking when it comes to what you put on your plate.

So if bread is one of your big food loves, you’re probably keen to keep it on your ‘can eat’ list. Maybe you’ve considered sourdough – another 2020 favourite – as an alternative?

But is sourdough actually keto? Is it vegan? And what specific health benefits does it offer for these diets? Let’s take a look.

Is sourdough keto?

The answer to ‘Is sourdough keto?’ can be either ‘yes’ or ‘no’.

That’s because sourdough’s keto credentials can vary from bread to bread. A standard sourdough loaf is made from two simple ingredients, flour and water – or three, if you add salt.

So standard sourdough isn’t keto, because standard, all-purpose flour is made from grain (usually wheat), meaning it’s high-carb. Therefore, anyone following a strict ketogenic diet should avoid it.

But the good news is that sourdough doesn’t actually have to contain wheat flour. Many delicious sourdough recipes use wheat- and gluten-free flour alternatives, such as almond flour or coconut flour.

Not only do these flours mean that you can say ‘yes’ to the question ‘Is sourdough gluten-free?’, but they also push the carb levels way down. So ketos, celiacsand gluten-intolerant bread-lovers can all rejoice!

That said, some researchers believe that sourdough’s fermentation process may modify the structure of carb molecules, reducing the bread’s glycaemicindex (GI). So, even sourdough made with standard flour may be less of a ‘no-no’ if your keto diet isn’t strict.

Is sourdough vegan?

Again, ‘Is sourdough vegan?’ has a bit of a ‘six of one, half a dozen of the other’ answer. And the answer to, ‘Is sourdough dairy-free?’ is ‘not always’ as well.

That’s because, as we said above, the traditional sourdough recipe contains flour, water and salt. That means it contains no animal products other than tiny lactobacilli bacteria, which most vegans would deem okay to eat.

However, other sourdough recipes do include animal products – such as milk, yoghurt or egg – to add moisture to the loaf. While this isn’t overly common, it is something to note when you do your shopping or see sourdough on the menu.

You’re generally better off buying bakery-fresh sourdough over store brought , as bakeries typically don’t use animal products . However, some bakers might use a brush of egg or honey on top of the loaf to help it brown. Plus, they might sometimes grease the sourdough tin with animal products such as lard.

Another thing to be aware of is that commercial sourdough can sometimes be contaminated with animal ingredients during the production process. This happens when other products containing ingredients such as egg or milk are made on the same lines.

To avoid unwanted animal products, always check the labels. You may also want to avoid anything that ‘contains traces’ of these products.

Sourdough’s keto and vegan health benefits

So, good news all around. If you follow a keto or vegan diet, you can still enjoy biting into a delicious slice of sourdough. You’ve just got to check the recipe and labels.

But there’s more to say about these two diets when it comes to this popular bread. Not only does sourdough generally get the green light for consumption, but it also offers a range of health benefits that complementweight loss, keto, and vegan diets.

Vitamin and mineral-rich

On any type of diet, getting the right amount of minerals and nutrients is essential. And sourdough beats the standard white loaf of bread hands down in terms of its vitamin and mineral content.

Some of the key nutrients that sourdough provides are iron and selenium – which protect the immune system, cells and tissues – and B vitamins.

B vitamins are important as they assist in proper nervous system function, and they’re one of the vitamin groups that vegans often struggle to get enough of. Some B vitamins can also boost metabolism, which is great if you’re using keto to lose weight.

Plus, sourdough is also high in protein. In fact, a single slice of sourdough has as much protein as one egg – helping both ketos and vegans to get enough of this building-block nutrient.

Prebiotic and probiotic power

Probiotics and prebiotics are great for gut health – and their presence in sourdough gives it another tick. While the probiotics created during sourdough’s fermentation process actually die when the bread bakes, goodness remains in the form of prebiotics – a type of fibre that our gut bacteria use as a food source.

When the natural probiotic bacteria in our gut feed on these prebiotics, they release nutrients. And the prebiotic fibre in ancient grains – including spelt in particular – works wonders for digestion. That means sourdough benefits not just ketos and vegans, but anyone who wants to be healthier.

Say ‘yes’ to sourdough!

So there you have it. Whether you’re asking, ‘Is sourdough keto?’, ‘Is it vegan?’ or have other, similar sourdough-and-diet-related questions, now you know the answer.

As long as you ask your baker or check the label, sourdough is go!

Add in the fact that it has lots of other health benefits if you’re following either a keto or vegan diet, and saying ‘yes’ to sourdough is a no-brainer.

That’s good news for bread-lovers who don’t want their diet to curb their crust love.

Feast your eyes on our acclaimed artisan sourdough collection and support The Bread & Butter Project by purchasing one of our keto- and vegan-friendly loaves. Available in select Woolworths Metros, Harris Farm Markets and local grocers.

Sourdough’s keto and vegan credentials - The Bread & Butter Project (2024)

FAQs

Is sourdough bread keto-approved? ›

A standard sourdough loaf is made from two simple ingredients, flour and water – or three, if you add salt. So standard sourdough isn't keto, because standard, all-purpose flour is made from grain (usually wheat), meaning it's high-carb . Therefore, anyone following a strict ketogenic diet should avoid it.

Does the vegan keto diet work? ›

It may offer some health benefits, such as rapid weight loss and a reduction in body fat. Similar to a vegan diet, a vegan keto diet may provide some benefits to heart health. However, it is a highly restrictive diet that is not suitable for everyone.

Can I eat sourdough bread on a low carb diet? ›

Look for bread with no more than 10 grams of carbohydrates per slice. These breads are typically labeled as low in carbohydrates on the packaging. Sourdough bread is another low-carb bread option, often containing half of the carbohydrates found in one slice of white bread.

What to avoid on a vegan keto diet? ›

Foods to avoid

Animal products, including eggs, meat, poultry, dairy and seafood, are excluded on a vegan keto diet. Here are examples of foods that should be completely avoided: Meat and poultry: Beef, turkey, chicken, pork. Dairy: Milk, butter, yogurt.

Is sourdough bread good or bad carbs? ›

Sourdough has made a comeback—and for good reason. It provides nutrients, including healthy carbs, protein, fiber, iron and vitamins like folic acid. It may help improve digestion, lower chronic disease risk and even promote healthy aging.

Is sourdough bread good for losing belly fat? ›

But flour type and personal diet need to play a big role. Is sourdough bread good for weight loss? Yes, it may help in your weight management journey. It's complex carbs and high fibre content can leave you feeling full and limit snacking.

What is the healthiest sourdough bread? ›

“The whole-grain sourdoughs have more fiber, protein and micronutrients, making them more filling and healthier for you overall,” says Natalie Rizzo, registered dietitian and nutrition editor at TODAY.com. When choosing a sourdough loaf, look for ones that have whole wheat, spelt or rye, Rizzo adds.

Which bread is lowest carb? ›

6 Low-Carb Breads to Try
  • Base Culture Original Keto Bread. Flaxseed, arrowroot and almond flour, and almond butter give this bread its nutty, sweet flavor. ...
  • Ezekiel 4:9 Sprouted Whole Grain Bread. ...
  • Julian Bakery Keto Thin Bread. ...
  • Simple Mills Focaccia. ...
  • Unbun Unbread. ...
  • Outer Aisle Sandwich Thin. ...
  • Cloud Bread. ...
  • Almond Flour Bread.
Nov 3, 2022

Do you lose more weight on keto or vegan? ›

Both keto and plant-based have been shown to help with weight loss and in the short-term, keto wins for overall pounds lost. However, when it comes to fat loss, sustainable weight loss and compliance, nutrient-density, and overall health benefits, a plant-based diet comes out on top.

What fruits are on keto? ›

Keto fruits by definition are low in carbohydrates. You still need to exercise portion control with most keto-friendly fruits to be within the limits of a keto diet. Keto-friendly fruits include avocados, watermelon, strawberries, lemons, tomatoes, raspberries, peaches, cantaloupe, star fruit, and blackberries.

What plant-based meat is keto-friendly? ›

Low-carb vegetarian proteins: Tofu, seitan and tempeh — Although tempeh is higher in carbs than tofu and seitan, it's also high in fiber, so the net carbs (AKA the total grams of carbs minus the grams of fiber) make it keto-friendly.

Which bread is most keto friendly? ›

There is a lot of keto bread out there, but sourdough is one of the best. It's made with a fermented dough that contains live bacteria, which makes it easier to digest and helps to balance your gut flora. It is also a good source of prebiotics, which are essential for gut health.

Is sourdough bread good for carb loading? ›

Athletes may benefit from lower fibre carbohydrate sources and a reduced fat intake during the carbohydrate load. For example: Instead of whole grain bread choose a lower fibre sourdough or rye bread. Instead of high fibre fruit like berries and apples choose lower fibre fruits like tropical fruits, grapes, and melon.

Is sourdough bread good for no sugar diet? ›

A lower glycemic index means that eating sourdough bread can help to maintain your blood sugar levels and regulate insulin levels. Your insulin levels will not spike as high after consuming sourdough bread as they would after eating regular white bread. Sourdough bread typically has little to no sugar.

Can diabetics eat sourdough bread? ›

Sourdough bread is made through a slow fermentation process, which may cause this type of bread to raise blood sugar more slowly than other breads. As a result, sourdough bread could be a great choice for those with diabetes. Whole grain sourdough bread is the best sourdough bread for diabetics.

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