(April 4, 9:48 a.m.) McDonald’s USA, Oak Brook, Ill., wants consumers to know exactly what they’re eating.

The fast-food giant is using the Web to boast about its ingredients and its suppliers. McDonald’s has launched http://cep.mcdonalds.com/qualityfood/index.jsp along with packaging and television advertisements that direct consumers to the site.

Spokeswoman Danya Proud said traffic has increased significantly on the company’s Web site since the campaign started in late February, and the average length of visits also has increased.

The site includes links to frequently asked questions about produce with answers that include what varieties of apples, grapes and tomatoes McDonald’s uses and how its salads are prepared.

The site eventually will soon include testimonials from growers as well as a section titled “From Farm to Restaurant.”

“We’re taking cameras out to the fields and farms to give you the full picture on McDonald’s farming and sourcing processes,” the site says. “For the first time, you’ll get to see exactly where your food comes from, and how it ends up on your plate.”