Food, herbs and spices are increasingly analysed for hidden medicinal and nutritional benefits. This is an important development as such “medication” can be used cheaply, as part of a daily diet, without the inconvenience and expense of a doctor’s appointment.

One such spice is the well-known turmeric or arad, a colourant to make yellow rice. It’s somewhat strong, bitter taste blends wonderfully with curries, but it’s not palatable in raw form, particularly if you need larger amounts for pain relief. There’s an …