Potentially Bad News for Juice

I don't want to believe this claim, from Canadian researchers:

Fruit juices including grapefruit, orange and apple can dramatically reduce the effectiveness of heart and cancer drugs, it was claimed. Potentially the medicines could be rendered useless if they are taken at the same time as drinking juice, Canadian researchers said.

The evidence emerged from a study in which grapefruit juice was found to shut certain drugs out of the body.

Other fruit juices, notably orange and apple, are thought to have the same effect.

Patients consuming fruit or juice to be healthy run the risk of wiping out the benefits of their medicines - among them vital treatments for heart disease, cancer, organ transplant rejection and infection, the scientists warned.

Studies like this are always coming out, then being retracted, then being confirmed again (remember all the shenanigans about popcorn or splenda?). We're hoping this one is simply proven wrong.