Hamburgers consist of ground up meat, usually beef. When you choose the meat at the grocery store, look for meat with the least amount of fat. Ground beef labeled "lean" still has 10 g of total fat, and 4.5 g are saturated fat. Extra lean beef has 5 g of fat and 2 g of saturated fat. You should choose ground beef with less than 10 percent total fat, and consider packages labeled "Choice" or "Select" as these usually have less fat.