In January 2011, Walmart announced a program to improve the nutritional value of its store brands over five years, gradually reducing the amount of salt and sugar and completely eliminating trans fat. Walmart also promised to negotiate with suppliers with respect to nutritional issues, reduce prices for whole foods and vegetables, and open stores in low-income areas, so-called "food deserts", where there are no supermarkets.[63] On April 23, 2011, the company announced that it was testing its new "Walmart To Go" home delivery system where customers will be able to order specific items offered on their website.