Australians will be able to take genetic tests without worrying about the impacts results could have on their life insurance.
The federal government on Wednesday revealed it would stop life insurers from engaging in genetic discrimination by preventing them from using adverse predictive test results when underwriting plans.
About one-in-75 Australians is estimated to have a DNA variant that could increase their risks of some cancers or heart disease, according to Monash University.
Genetic testing can provide certainty and allow people to make changes that could reduce their chances of getting ill, but many avoid the procedure because they fear repercussions on their premiums.
Two years ago, Kara Ryan was selected to participate in genetic testing as part of a Monash University study, but her family's cancer history worried her.
"Part of me felt relief and excitement that I would be able to find out if I carried a harmful gene, but also a serious concern that - if I have a positive result - I may be discriminated against," she said.
"I had to make the choice between my health or protecting my life financially, and I chose my health."
Ms Ryan soon discovered she carried a genetic variant that increased her risk of breast and ovarian cancer at a younger age.
"I was scared. It was a moment where I felt very confused. I didn't know what I was going to do with this information," she said.
Knowing she had the variant allowed her to take control of her health.
Ms Ryan has since sought advice from genetic counsellors who have helped her manage the diagnosis.
"When I decided to proceed with genetic testing, I was faced with a difficult choice," she said.
"I don't have to worry any more, and neither does any other Australian."
The government's proposed ban will be introduced prior to the federal election, which must be held before May.
Monash University public health researcher Jane Tiller celebrated the move as a momentous step for the future of medical research and preventative health.
The ban has also received support from the Council of Australian Life Insurers, with chief executive Christine Cupitt noting it was good for Australians, families and the industry.
"We've never wanted to do anything to discourage people from taking a genetic test and managing their health in a preventative way," she told reporters in Canberra.
Financial services industry watchdog Australian Securities and Investments Commission would enforce this ban, Financial Services Minister Stephen Jones said.
The genetic discrimination reforms have received support from a raft of politicians including independent MP Kylea Tink and Labor politicians including Mike Freelander, Josh Burns and Louise Miller-Frost.
