Take a simple cheek swab and have your DNA analyzed in an accredited laboratory. This package contains a cotton bud for your cheek swab. The analysis will determine whether you suffer from primary lactose intolerance (the most common form). The price of the product includes the cost of the analysis and postage from Spain to the laborory in Sweden. The reliability of the test result is 99.5%.

If you are bloated or have stomach cramps you might be lactose intolerant and should avoid milk products (with lactose) in your diet.