Grocery store produce section. (Photo by John Greim/LightRocket via Getty Images) NEW YORK - 40 percent of shoppers say they are only putting healthy items in their carts to avoid being judged at the checkout line, according to a new survey.The survey also found that many shoppers use the self-checkout line to avoid being judged about their purchases.The survey was conducted by OnePoll on behalf of the Kroger grocery store chain.2,000 people in the U.S.