What genetic tests from 23andMe, Veritas and Genos really told me about my health
By Tina Hesman Saey,
ScienceNews
| 05. 22. 2018
Direct-to-consumer genetic testing first came on the market about a decade ago, but I resisted the temptation to see what health information is hidden in my DNA — until now.
As a molecular biology writer, I’ve been skeptical that the field of genetics is mature enough to accurately predict health (see related article). What finally motivated me to send away my DNA in the mail was the fact that companies are now offering much more genetic information. Is more better? Would an expensive test that deciphered my entire genetic instruction manual, or genome, reveal more about me than more limited tests? That’s what I wanted to find out.
For health testing, I sent spit samples to 23andMe, Genos and Veritas Genetics, three companies that represent the various levels of DNA testing available to consumers. (I did ancestry testing, too; you can read about my experiences with that in June.) These companies all analyze natural spelling variations in the string of letters that make up DNA. Where most people have, say, a “G,” some might have an “A.”...
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