Wrigley and Margetts' study involved a poor neighborhood in the UK where Tesco built a large grocery store. Wrigley and Margetts had advance notice of the Tesco plan and were therefore able to examine the food consumption habits of area residents both before and after the area's status as a food desert. The study had a number of limitations, one of which was that Wrigley and Margetts asked only one question of nutritional importance, regarding fruit and vegetable consumption before and after the opening of Tesco. Wrigley and Margetts did not collect data on overall calories consumed, macronutrient profiles, food items, or many other points. Although Wrigley and Margetts found a statistically significant increase in fruit and vegetable consumption after Tesco opened, the authors counted all fruit juices with 10% or more juice as fruit, so it is unclear whether the increase was due to an increase in the consumption of whole foods or simply juices. Furthermore, the absence of data on any other aspect of food consumption suggests the possibility that Wrigley and Margetts actively suppressed data that did not support their hypothesis (i.e. that the grocery store would lead to a positive change in food consumption)