What elements make up 96 percent of the body's weight?

LiveScience - Roughly 96 percent of the mass of the human body is made up of just four elements: oxygen, carbon, hydrogen and nitrogen, with a lot of that in the form of water. The remaining 4 percent is a sparse sampling of the periodic table of elements.

The elements that make up 96 percent of the body weight is oxygen, carbon, hydrogen and nitrogen.