It is more like the blood collection solution your doctor uses also happens to collect a bit of DNA on the side and sells that to third-party buyers ('legit' or

It is more like the blood collection solution your doctor uses also happens to collect a bit of DNA on the side and sells that to third-party buyers ('legit' or otherwise), and the doctor is either unaware or doesn't really care. In which case your options as a consumer is either to say "my options are sucking up the humiliation and massive invasion of privacy and having the blood test, or not having it done at risk to my health" OR if you have the means to find the resources to attack either the blood company or your doctor where it hurts (i.e. financially), either via a lawsuit or a successful PR campaign etc.