Different studies have shown that food supplements can contain doping substances. This is often not mentioned on the label. The use of food supplements is therefore a risk for top athletes. It can lead to a positive result of a doping control.

In response to this risk for top athletes, they set up the Dutch Safety System Food Supplements for Topsport (NZVT) in 2003. The system offers manufacturers of food supplements the opportunity to have their supplements checked against payment. This check is done per batch. A batch is a batch of food supplements made in one go. The packaging in this batch is all given the same batch number. These can be found on the label, often close to the best-before date (THT date)

The‘found clean’ product-batch combinations are included in the NVZT list. You can consult this NZVT list via the website (www.dopingautoriteit.nl) and/or the 'Doping Range App'. This way you know exactly which batch of which food supplements have been checked. We recommend that top athletes only use these dietary supplements. This allows them to minimise the risk of developing a positive doping test by using dietary supplements.

We at Svensson have made it easy. Certain products in our range are checked as standard by the NZVT. ARe you curious which products we have tested anti-doping Then click here!