Physalis or Cape gooseberries (no relation to Euro gooseberries) grow really well in New Zealand.
I have no idea about health benefits, but the plants are tough and thrive in poor soil, the berries are delicious and their papery lanterns look cool.
Importantly, they are usually a hit with kids.
They form very floppy, straggly, unattractive bushes which can be
perennial in a temperate climate, but they fruit better if you kill them off and start again each year. Luckily, they self-seed prolifically, so that's not a problem.