Is this true that our choice of newly acquired taste for rice and wheat is adding to water crisis ?

We are seeking information that supports the logic that we need to eat more millet instead of rice and wheat, not only for it's health benefits but also millet requires a lot less water to cultivate. Also, have noticed that the agricultural practices are certainly not earth friendly, the massive sprinklers sucking out ground water is such a wasteful practice. So, the question is, do you have any data to support the above argument?

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