At-home DNA test kits like 23andMe have been around for years. In fact, according to a recent CR survey, about 20 percent of Americans have taken a genetic test, perhaps with the hope of finding answers about their family origins or potential health problems. But as Consumer Reports explains, although you might take the test for fun, the results can be serious.
Though some of these tests can help determine if you’re likely to develop diseases such as breast cancer or Alzheimer’s, they could also give you a false sense of relief—or fear.
While a positive result from these tests can mean you do have a higher risk of a certain disease, a negative result doesn’t necessarily mean you’re out of the woods, because there could be other variants that can cause that disease not detected by the test.
23andMe says it clearly explains test limitations to users.
While DIY DNA tests can be helpful, some may find the results confusing, misleading, or upsetting.
In the CR survey, about 10 percent of people who used these tests said their reports contained unsettling information, such as the news that someone thought to be a biological relative wasn’t actually related to them at all.
If you think these kits are going to give you a complete picture of your ancestry and your health, you’re going to be disappointed. And there is also the possibility that it could reveal information you may not even want to know about your family.
Bottom line: A DIY DNA test kit might be right for you as long as you understand what your results may or may not signify.
Consumer Reports would also like to remind you that there are very few laws that regulate what a company can do with your genetic data once they receive it, so it could be sold to a third party without you ever knowing about it.