She bought 8ounces of cheese, 8-ounce raspberries, 8 ounces of blueberries for a total of 8*3 = <<8*3=24>>24 ounces
16 ounces are in 1 pound and she has 24 ounces of food so she has 24/16 = <<24/16=1.5>>1.5 pounds of food
Those items are 1.5 pounds and she bought 1 pound of bread, 1 pound of tomatoes, 2 pounds of zucchini and 1.5 pounds of chicken for a total of 1.5+1+1+2+1.5 = <<1.5+1+1+2+1.5=7>>7 pounds of food
#### 7