
Whole wheat bread is typically considered a healthy option, packed with essential nutrients like manganese, selenium, and B-complex vitamins. However, its high carbohydrate content makes it unsuitable for low-carb diets like keto. A single 100g serving of whole wheat bread contains approximately 37g of net carbs, which is a significant portion of the recommended daily carb limit for keto, typically around 50g or less. As a result, consuming whole wheat bread can quickly exceed your daily carb allowance and disrupt ketosis, the metabolic state where your body burns fat for energy instead of carbohydrates. Therefore, while whole wheat bread is nutritious, it is generally not recommended for those following a keto diet.
| Characteristics | Values |
|---|---|
| Carbohydrate content | High |
| Carbohydrates per serving | 27.3g per two slices |
| Net carbs per serving | 23.5g per two slices |
| Net carbs per 100g serving | 36.07g-37.1g |
| Recommended daily carb limit for keto | 20g-50g |
| Nutritional benefits | Rich in manganese, selenium, and B-complex vitamins |
| Keto-friendly alternatives | Bread made with coconut flour or almond flour, lettuce leaves, portobello mushrooms |
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What You'll Learn

Whole wheat bread is high in net carbs
Whole wheat bread is typically considered a healthy option. However, it is high in net carbs, which can be problematic for those following a ketogenic diet. The keto diet is a low-carb, high-fat diet that restricts carbohydrate intake to around 20-60 grams per day. Net carbs are calculated by subtracting sugar alcohols and dietary fibre from the total carbohydrate content of a food.
Whole wheat bread has a significant number of net carbs. A 100-gram serving of whole wheat bread contains about 37.1 grams of net carbs, while a two-slice serving (64 grams) contains 27.3 grams of carbohydrates, with 23.5 grams of those being net carbs. This means that just two slices of whole wheat bread would exceed the daily carbohydrate limit for someone on a strict keto diet, which is typically 20-50 grams of net carbs per day.
The high net carb content of whole wheat bread can make it difficult to maintain ketosis, the metabolic state in which the body uses fat instead of carbohydrates for energy. Consuming too many net carbs can cause the body to switch back to using glucose from carbohydrates for energy, disrupting the benefits of the keto diet. Therefore, it is generally recommended to avoid whole wheat bread on a keto diet.
However, it is important to note that the impact of whole wheat bread on ketosis may depend on the specific carbohydrate limits of the individual's keto plan and their overall carbohydrate intake for the day. Some less strict low-carb diets allow for a higher carbohydrate intake, and as long as other carbohydrate-rich foods are avoided, whole wheat bread may be consumed in moderation. Additionally, there are keto-compatible alternatives to whole wheat bread, such as bread made with coconut flour or almond flour, or wrapping sandwich ingredients in lettuce leaves.
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Alternatives to whole wheat bread on keto
Whole wheat bread is usually considered a healthy option, packed with essential nutrients like manganese, selenium, and B-complex vitamins. However, it contains a high number of carbohydrates, making it unsuitable for a keto diet. A two-slice serving of whole wheat bread contains 23.5 net carbs, which is already more than the recommended daily intake of 20 net carbs on a strict low-carb ketogenic diet.
- Cloud bread or oopsie bread: This bread is protein-rich and makes an excellent sandwich base or English muffin replacement.
- Ezekiel bread: This bread is made from sprouted grains, increasing its nutritional value and reducing the impact of carbohydrates on blood sugar. However, it is unsuitable for those with gluten sensitivity or celiac disease.
- Almond flour or coconut flour bread: These flours are low in carbs and high in fiber, making them great substitutes for wheat flour. A slice of almond flour bread contains only 1.9g of net carbs, compared to 14.8g in whole wheat bread.
- Cauliflower bread: This bread is made by combining shredded cauliflower with eggs and cheese, providing a bread-like product perfect for sandwiches or toppings. It is low in carbs and high in vitamins, minerals, and dietary fiber.
- Flaxseed bread: Flaxseeds are low in carbs and packed with nutrients like Omega-3 fatty acids and fiber. A slice of flaxseed bread has around 1g of net carbs, making it keto-friendly.
- Lettuce leaves: Large lettuce leaves, such as romaine or butter lettuce, provide a crunchy and carb-free alternative for deli meats, cheeses, sauces, and sandwich fillings.
- Bell peppers: Cut bell peppers in half, remove the seeds, and fill them with sandwich fillings or other toppings. They are versatile and can be used in various dishes, like Philly "cheese steaks" or Italian-style meals.
- Avocado: Slice an avocado in half, remove the pit, and fill it with your favourite keto toppings. Avocado is delicious with smoked salmon, cream cheese, everything bagel seasoning, or keto-friendly fillings like tuna, shrimp, or lobster.
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Carbohydrate intake on keto
Carbohydrates are one of the three main macronutrients, along with protein and fat. They are essential for providing the body with energy, especially for the brain, nervous system, and red blood cells. However, on a keto diet, the body aims to use fat as its primary energy source instead of carbohydrates. This means that a strict limit on carb intake is required to achieve and maintain ketosis, a metabolic state where the body burns fat for energy.
The recommended daily carb limit for a keto diet is generally 50 grams or less, with some sources suggesting a range of 20 to 60 grams per day. Net carbs, which are calculated by subtracting fibre and sugar alcohols from total carbohydrates, are particularly important to consider on a keto diet. Most keto diets recommend limiting net carb consumption to 20-30 grams per day to stay in ketosis.
Whole wheat bread is typically considered a healthy option due to its nutritional content, including essential nutrients like manganese, selenium, and B-complex vitamins. However, it is also high in carbohydrates, with a 100-gram serving containing about 37.1 grams of net carbs. This means that even a single serving of whole wheat bread can significantly impact your daily carb allowance on a keto diet and potentially push your body out of ketosis.
Therefore, while whole wheat bread may offer some nutritional benefits, it is generally not recommended on a keto diet due to its high carb content. Those following a keto diet are usually advised to avoid or limit bread and other grain-based foods. Instead, they can opt for keto-compatible alternatives made with low-carb flour alternatives like coconut or almond flour. Additionally, lettuce leaves and portobello mushrooms can be used as creative substitutes for bread in sandwiches and pizzas, respectively.
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Nutritional value of whole wheat bread
Whole wheat bread is typically regarded as a nutritious food. However, it contains a significant amount of carbohydrates, which makes it unsuitable for low-carb diets like keto. A serving of two slices of whole wheat bread contains approximately 27.3 grams of carbohydrates, with 23.5 grams being net carbs. This means that by consuming just two slices, you would exceed the daily carbohydrate limit of 20 grams for a strict low-carb ketogenic diet. Therefore, it is generally recommended to avoid wheat bread on keto.
Despite this, whole wheat bread does offer nutritional value in the form of various essential nutrients. It is a good source of dietary fibre, with 3.8 grams per two-slice serving, contributing to digestive health and satiety. Additionally, whole wheat bread provides 8 grams of protein and 2.2 grams of fat per serving, with 0.5 grams coming from saturated fat.
In terms of micronutrients, whole wheat bread is particularly rich in manganese, selenium, and B-complex vitamins. Manganese plays a crucial role in bone health and antioxidant defence, while selenium boosts the immune system and supports thyroid function. B-complex vitamins, including thiamin, riboflavin, niacin, and folate, contribute to energy metabolism, nervous system health, and red blood cell formation.
Compared to white bread, whole wheat bread is a more nutritious option. White bread is made from refined wheat flour, which has been stripped of its nutrient-rich bran and germ, resulting in a higher glycemic index. This can lead to rapid spikes in blood sugar and insulin levels. In contrast, whole wheat bread retains these nutrients and provides a slower release of energy due to its lower glycemic index.
While whole wheat bread may not be suitable for strict keto dieters due to its carbohydrate content, it can be included in moderation on less strict low-carb diets. Those on a less strict low-carb diet of 40 to 60 net carbs per day could consume two slices of whole wheat bread daily, provided they carefully manage their carbohydrate intake from other sources. However, it is important to note that this may vary depending on individual dietary needs and goals.
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Whole wheat bread and ketosis
Whole wheat bread is generally considered a healthy option, packed with essential nutrients like manganese, selenium, and B-complex vitamins. However, when it comes to ketosis, the story is different. Ketosis is a metabolic state where your body uses fat instead of carbohydrates for energy. To achieve and maintain ketosis, it is crucial to limit your carbohydrate intake, typically to around 50 grams or fewer net carbs per day.
Whole wheat bread, unfortunately, has a high carbohydrate content. A single 100-gram serving contains approximately 37 grams of net carbs, which is a significant portion of your daily carb allowance. Eating just two slices of whole wheat bread, which have about 23.5 net carbs, can quickly exceed your total carb intake for the day if you're on a strict keto diet of 20 net carbs or less.
The high carb content of whole wheat bread makes it challenging to include in a ketogenic diet without disrupting ketosis. Even with careful tracking of macronutrient intake, it may be difficult to stay within your daily carb limit while consuming whole wheat bread. As a result, it is generally recommended to avoid consuming whole wheat bread when following a keto diet.
However, there are alternatives to satisfy your bread cravings while staying within your carb limits. Lettuce leaves can be used as wraps, and portobello mushrooms make an excellent base for keto-friendly pizzas. Additionally, there are types of bread made with low-carb alternatives like coconut or almond flour, which can be suitable for a keto lifestyle.
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Frequently asked questions
No, whole wheat bread is not recommended for keto as it is very high in net carbs. A 100g serving of whole wheat bread contains about 37.1g of net carbs, which is a significant amount of your daily carb allowance.
A two-slice serving of whole wheat bread contains 27.3g of carbohydrates, 23.5g of which are net carbs.
Whole wheat bread is not keto-friendly because it can easily tip you over your daily carb limit and push your body out of ketosis. This can cause your body to switch back to using glucose from carbohydrates for energy, instead of burning fat.
Some alternatives to whole wheat bread that are keto-friendly include lettuce leaves, portobello mushrooms, and bread made with low-carb flours such as coconut flour or almond flour.









































