Frequently asked questions

GlutenDetect is available:

  • At, where you can also find 6 -or 12-month subscriptions that will allow you to see how you do your diet over time.
  • You can order it in pharmacies, where we recommend taking the national codes of the product, an identification that allows the pharmacist to locate it quickly:
    • GlutenDetect Urine 1 unit – 186327
    • GlutenDetect Urine 5 units – 198354
    • GlutenDetect Urine 12 units – 186329
    • GlutenDetect Stool 2 Pack – 186328
  • Through Biomedal´s distribution partner in Spain. Contact us for more information.

It is similar to a COVID/pregnancy test. If a single green line appears, it means that no gluten was detected in the sample, but if two lines appear –one green and one red- gluten has been detected, indicating a gluten intake within the preceding hours (urine) or days (stools). The result can be read between 15-30 minutes.

Gluten Immunogenic Peptides (GIP) are fragments of gluten proteins that are resistant to gastrointestinal digestion, and which trigger immunologic reactions in coeliac patients.

No, they can be found in anyone who ingests gluten.

Gluten is excreted into urine quickly, whereas it persists in the intestine for days. Urine therefore is most appropriate for determining acute contamination over the previous 15 hours whereas stool is most appropriate for monitoring compliance over a longer period of time (previous 1-6 days).

It has been shown that the test can detect intakes from 50 mg gluten/day, which is the smallest amount of gluten that is harmful to celiac patients according to scientific consensus.

Check your eating habits to detect the origin of the gluten transgression.

No, it is not a diagnostic test.

This is one of the most common errors we come across. Recent clinical studies show that more than 70% of coeliac patients who do not have symptoms present atrophy (damage) of the intestinal mucosa. Although many patients’ base compliance with their diet on the absence of symptoms, they may still have been ingesting gluten without knowing it. These small intakes are only detectable through gluten fragments excreted in faeces and urine.

It is important to be clear that a minimum amount of gluten causes damage to the coeliac’s body, regardless of whether or not it results in symptoms. Intestinal damage always occurs. GlutenDetect checks for this silent consumption of gluten and helps you locate where it may be coming from.

No. Most of coeliacs that eat gluten don´t feel symptoms. However, some studies have found gluten fragments on these patients’ feces, which is a trustworthy sign on gluten intake.

According to recent clinical trials, almost 80% of GIP-positive patients ( traces of gluten in feces) who say they follow a gluten-free diet do not suffer from symptoms. Another study shows that almost all coeliacs who eat less than half a gram of gluten, equivalent to a canapé, have no symptoms. In conclusion, it is not advisable to base compliance with the diet on the absence of apparent symptoms, because although small intakes of gluten go unnoticed, they silently influence the long-term consequences.

The damage caused by small, continuous intakes of gluten is cumulative and in the long term prevents the recovery of the intestinal mucosa. This damage causes villi to lose their ability to absorb nutrients and increases the probability of future more serious diseases such as lymphomas, autoimmune diseases and bone weakness.

GlutenDetect should be stored at room temperature.

According to recent clinical studies, when three urine samples are measured throughout the week and the result is negative, there is more than a 97% chance that the intestine is in good condition.Similarly, two negative stool tests over a week would indicate good compliance with the gluten-free diet.

  • Our recommendation would be to measure 3 urine samples, preferably one of them on the weekend, taking the first urine in the morning, or 2 stool samples over a week with 3-4 days between them.

The tests should be used on a regular basis (weekly, every two weeks, monthly…) to monitor compliance with the gluten-free diet over time.

The test is qualitative. A red line, regardless of its intensity, indicates the presence of gluten and a positive result.

According to different studies, gluten intake, whether voluntary or involuntary, is common among celiac patients. It is estimated that almost 90% of celiacs could intake gluten at least once a month.

Following a gluten-free diet day after day is difficult, but, in any case, it is important to assess the degree of exposure to gluten in daily habits or changing environmental circumstances (for example, after meals away from home).

No drug interference has been detected to date.

Yes, because the dynamics of excretion are different in urine and feces. Therefore, different results can be obtained in both types of samples depending on the times at which they are taken.

Yes, although it is unlikely, the detection of GIPs depends on the excretion dynamics of each individual. For this reason it is important to follow the guidelines indicated in the instructions and increase the frequency of performing the test.