specialist in digestive health since 2008

specialist in digestive health since 2008

Since 2008, we’ve dedicated ourselves to crafting nutritional supplements. Our team of dieticians meticulously develops our products with exceptional care. We prioritize purity, using only essential ingredients in our formulations. This guarantees our supplements are gluten-free, soy-free, and of superior quality, ensuring safety and minimizing unwanted side effects.

low FODMAP Certified™ by the Monash University

low FODMAP Certified™ by the Monash University

Our products proudly hold the Low FODMAP Certified™ status from Monash University

more than 100,000 satisfied customers

more than 100,000 satisfied customers

Since 2008, our mission has been to “help everyone enjoy their food again.” We are proud to have supported over 100,000 customers.

Intoleran quatrase supplements

trouble digesting carbohydrates?

Then our quatrase supplements are perfect for you!

Our quatrase supplement contains a blend of digestive enzymes that aid in the digestion of lactose and other complex and hard-to-digest carbohydrates*. These carbohydrates are found in various grains, vegetables, and legumes.

Aids in the digestion of various complex carbohydrates.
Natural ingredients, without unnecessary additives.
No effect? Money-back guarantee!

Over 100,000 satisfied customers use Intoleran supplements!

*Health claim pending European approval.

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what are digestive enzymes?

Digestive enzymes play an essential role in breaking down and digesting nutrients, such as complex carbohydrates (sugars). These specific enzymes ensure that complex carbohydrates are broken down into simpler sugars that the body can digest more effectively. If these complex sugars are not broken down, it can lead to side effects such as gas formation and fermentation, which can be quite discomforting.


why choose Quatrase?

Quatrase contains a blend of various digestive enzymes that assist in the digestion of different hard-to-digest carbohydrates. For example, lactase helps in the digestion of lactose, and the enzyme alpha-galactosidase aids in the digestion of complex carbohydrates (fructans and galactans).

Unique blend of highly dosed digestive enzymes

Quatrase Forte has been one of our bestsellers for 10 years

Aids in the digestion of complex carbohydrates and reduces the risk of gas formation*

Watch our video on digestive enzymes

wat is lactase

enjoy food again

Since 2008, Intoleran has been proving to bring high-quality supplements to the market, which are used by a rapidly growing group of consumers. In addition to selling our products, we also write recipes and blogs to inform and support people as much as possible in dealing with food intolerances such as lactose intolerance.


Enjoying food in just three steps!

Step 1

Shop the desired supplements at Intoleran. Ordered before 23:00? Then you’ll receive your order in 2 to 5 business days!

Step 2

We offer a flat rate for shipping of $5.50, no matter which state you reside in.

Step 3

You can once again enjoy food again, with reduced risk of bloating and gas.

decrease bloating

free advice from our dietitians

Digestive complaints? Let us help you, like we’ve helped many others. We will help you to find the solution that fits your needs best.

Fill out our contact form and we will get back to you

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