I think that those in India probably dont suffer parasites-because of these spices.
If you look at photos of Indian people, the whites of thier eyes are very bright-- this means a good liver and other organs. -that also may be that they arent as infested with parasites
to hurt the liver or organs because of the Saffron, Tumeric, etc., that they eat.
Now-- once they start eating the sad American junk food diet- things may change for the worst for them- so I hope they always stick to thier traditional spices.