More than 26 million people have taken an at-home ancestry test

More than 26 million people have taken an at-home ancestry test

The genetic genie is out of the bottle. And it’s not going back.

by Antonio Regalado Feb 11, 2019

As many people purchased consumer DNA tests in 2018 as in all previous years combined, MIT Technology Review has found.

Surging public interest in ancestry and health—propelled by heavy TV and online marketing—was behind a record year for sales of the tests, which entice consumers to spit in a tube or swab their cheeks and ship the sample back to have their genomes analyzed.

By the start of 2019, more than 26 million consumers had added their DNA to four leading commercial ancestry and health databases, according to our estimates. If the pace continues, the gene troves could hold data on the genetic makeup of more than 100 million people within 24 months.