METAL FOIL

A metal foil includes a core portion that has a first side and a second side located opposite to the first side and is made of a metal material, and a cladding portion that is located on at least one side of the core portion and contains zinc as a base material, wherein, when each of the two sides of the metal foil is individually subjected to X-ray diffraction measurement, the intensity ratio of the peak intensity Sof a peak derived from the (002) plane of zinc to the peak intensity Sof a peak derived from the (101) plane of zinc is 1.01 or more on each side.