[ayushgta]

Sure there is. However this article seems to make the point that just even if you eat right and are active, you are predisposed to these problems just by being of South Asian decent. The section of the article "The Indian/South Asian Risk Factor" talks about that.

[myth_buster]

From what I understoon, the section says:

  begun to unearth unique South Asian risk factors 
  that _may_ have genetic underpinnings

and gives example of one mutation.

The rest of "additional genetic and lifestyle-related risk factors" are primarily lifestyle or diet related.