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Knäckebröd

Rye crispbread — among the highest-fibre things you can buy in a packet.

What is Knäckebröd?

Knäckebröd is Scandinavian rye crispbread: rye flour, water, salt, baked until completely dry. Traditional versions contain nothing else.

Because it is whole rye and almost all the water is baked out, the fibre content per 100g is very high — often 15–20%, which is several times that of ordinary bread.

The practical catch is that a single crispbread is light, so per-100g figures overstate what you actually eat. Still, as a vehicle for cheese or fish it is one of the better options available.

Key nutrients

Per 100g. One crispbread is typically 10–12g.

Calories~330 kcal
Protein~9 g
Fibre~15–20 g
Carbohydrate~60 g
Fat~1.5 g
Per slice~30–40 kcal

Conditions Knäckebröd may help

Based on the nutrients and fibre this food supplies. These are supporting foods, not treatments.

Best preparation & usage

Read the ingredients. Traditional knäckebröd is rye, water and salt. Flavoured versions add oil, sugar and wheat.

Whole rye, not "rye flour". The distinction is the same as with bread.

Drink water with it. Very high fibre with insufficient fluid can make constipation worse rather than better.

It keeps for months, which makes it genuinely useful to have in the cupboard.

Why Knäckebröd works

The fibre content is high partly because it is whole rye and partly because drying removes the water that dilutes everything else. Weight for weight, a dry food concentrates nutrients.

Rye's arabinoxylan fibre is highly viscous, which slows gastric emptying and flattens the glucose response. That is why crispbread with cheese keeps you going far longer than white toast with the same topping.

Who should avoid or limit

Coeliac disease: wheat, barley and rye must be avoided completely, and cross-contamination counts.

Diabetes: portion and pairing matter more than banning. Eat bread with protein or fat rather than alone.

IBS: wheat is a common trigger — for many people it is the fructans rather than the gluten, which is why sourdough is often tolerated when ordinary bread is not.

This is information, not a prescription. If you are managing a diagnosed condition or taking medication, talk to your doctor before making a large change to your diet.

More Breads & Grains

Sources & further reading

Nutrition figures on this page come from standard food composition data. These links let you check the numbers and read the underlying research yourself rather than taking our word for it.