McDonald's subtracts "pink slime" from burgers

McDonald’s has announced it will no longer use a food additive some call "pink slime" in its burgers.

The filler is made from spare beef trimmings that are treated with ammonium hydroxide to kill any bacteria.

The material has come under fire in newspapers and in a major documentary. Celebrity chef Jamie Oliver even campaigned against it.

The U.S. Department of Agriculture has said that the use of "pink slime" is safe.