QFT - You've got to know the markets.
You can try to sling Acai here, but outside of marketers and hippies, no one knows what the fuck it is.
Most health products that are anti-oxidant fruits here are still pomegranate or blueberry, and res-v isn't going to sell either as we consume more red wine than any other country on the planet (we make REALLY good wine here, and we do it cheap. We're like the China of wine.)
We also have a thing about cramming things up our arses (unless we're drunk and in Kings Cross). There are very few suppository medications on the market.
You want to sell something to fat aussies, they don't give a shit about Rhiannon... They want to know how Magda Szubanski dropped 40kg in 6 months.
I'm not saying that stuff doesn't sell, or won't using regular tactics. Just not as well it does in the US, per capita.