Facebook may be eyeing your health data. Should you trust it?

Reuters is reporting that Facebook may enter the health care space — a step that many have been expecting since the company bought the fitness-tracking app Moves earlier this year.

The plans, which are still being developed, would establish online support groups to connect people with similar lifestyles and ailments. Facebook would also develop a series of apps, some of which would presumably monitor your workout and other aspects of your health.

Online support groups for diseases like Parkinson's and celiac have been around almost since the dawn of the Internet itself. Facebook, too, has all manner of user-created communities to address health care issues. But Facebook may be betting that by creating its own official versions, the company can keep users more engaged with the site and perhaps even improve health outcomes in a small but measurable way.

There's also a lot of money floating around the healthcare industry — an estimated $3 trillion worth — and no doubt Facebook hopes to capture a slice of that market. Health records are so valuable, security experts say, that hackers will pay up to 20 times more for a person's medical record on the black market than for a stolen credit card number.