As a purveyor of lifestyle advice, Gwyneth Paltrow has promoted the benefits of pink Himalayan sea salt, conscious uncoupling and being stung by bees.

Her prediction for the next big thing in wellness? An hallucinogenic drug that has been linked to at least 19 deaths.

The Hollywood actress said she believes the use of ibogaine, a mind-altering drug derived from a rainforest shrub found in central Africa, will become more mainstream. It is used in some countries to treat opiate addiction.

Paltrow made the claim in an interview with the New York Times to promote Goop, her lifestyle brand.

She was asked: "So what's the next big thing? What's the next gluten free or conscious uncoupling?" She replied: "I think how psychedelics affect health and mental health and addiction will come more into the mainstream … I mean, there's undeniably some link between being in that state and being connected to some other universal cosmic something.