Why people from all over the world are again preferring the local wild varieties?

Explanation

i. Local varieties of cattle used for production of milk and milk products have certain advantages over use of foreign or hybrid varieties.
ii . Milk obtained from local varieties of cattle are known to be a rich source of A2 beta-casein which is far healthier than A I beta-casein (present in milk of foreign or hybrid breeds).
iii. A 1 beta-casein has been implicated to be a cause of heart disease, Type-1 diabetes, autism and schizophrenia.
iv. Desi milk is also beneficial for people suffering from problems like irritable bowel syndrome. These are some of the reasons why people from all over the world are again preferring the local wild varieties.