Half of 15,500 mall-goers in seven cities said they were eating millets daily or on a weekly basis, in a survey, based on face-to-face interviews, done for Icrisat. It is possible that the interviews were not done randomly, and there was a selection bias towards those who were older, because 42 percent of about 4,000 persons interviewed in Delhi for the survey, cited health complications as a reason for consuming them.