Kalki Koechlin is not just appreciated for her performances, but also her lean frame. The actress says eating healthy and the right attitude help her stay fit.

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"I am lucky that I have a good metabolism rate. If you are in a good, happy space, you are working hard and you are not overeating, then you get to eat everything you can as long as you keep exercising and eat sensible food," the 29-year-old said at the launch of Kalli Purie's book "Confessions of a Serial Dieter".