What is a 'secular dietary conviction'? Religious restrictions are 'God says it is morally wrong to consume this'. Are you suggesting that australian culture suggests 'it is morally wrong to not eat vegemite'? I don't think that's true.
Because if it's just 'australian people like to eat X, I'm australian, thus it's morally wrong to deny me 'X', I don't see how that's reasonable. It's also a strong australian cultural norm to not be confined to a small cell every day for the rest of your life, but that norm was knowingly taken away as part this inmates' conviction and sentencing. Surely eating vegemite is a much smaller concern compared to the imprisonment.
Because if it's just 'australian people like to eat X, I'm australian, thus it's morally wrong to deny me 'X', I don't see how that's reasonable. It's also a strong australian cultural norm to not be confined to a small cell every day for the rest of your life, but that norm was knowingly taken away as part this inmates' conviction and sentencing. Surely eating vegemite is a much smaller concern compared to the imprisonment.