Kathmandu, Oct. 4 -- The nutritious grain that mountain peoples of the Americas and high Asia cultivated were displaced by wheat and rice, but they are staging a comeback thanks to growing public consciousness about health.

Food items like pickled potato, roasted corn, tomato in curry and chilli paste are as Nepali as you can get. But few here know that these staples of our food heritage have their roots in the Andes, and were actually brought to Europe and Asia only in the last 500 years.

Now, there is growing demand for other lost crops of the Incas like amaranth and quinoa among urban Nepalis. These grains are high in protein, low in carbohydrates, gluten-free and rich in micronutrients and minerals.

In fact, amaranth and quinoa are...