California farmers produce more than a third of the nation’s vegetables and two-thirds of its fruits and nuts. To do that, they use nearly 80 percent of all the water consumed in the state. It is the most stubborn part of the crisis: To fundamentally alter how much water the state uses, all Americans may have to give something up.

The portions of foods shown here are grown in California and represent what average Americans, including non-Californians, eat in a week. We made an estimate of the amount of water it takes to grow each portion to give you a sense of your contribution to the California drought.

The estimates include the amount of water used to make derivative products. For example, grape consumption includes not just fresh grapes, but also wine, jam and juice.