 Nevertheless, most Tharu historically obtained a varied diet through hunting and gathering as well as shifting agriculture and animal husbandry.This contrasted with diets of Pahade/Pahari Hindus that were predominantly agricultural and used only a few sources of animal protein because of religious or caste prohibitions.In the 1950s, when Nepal opened its borders to foreigners and foreign aid missions, malaria suppression programs in the Inner Madhesh made it possible for people without genetic resistance to survive there.