Does The Human Body Use Neptunium?

Does The Human Body Use Neptunium? Several studies report “relatively high concentrations” of neptunium in adrenal glands of laboratory animals. No health effects specific to exposure from neptunium “have been observed” in human beings. What do humans use neptunium for? The main use of neptunium-237 is in devices for detecting high-energy neutrons. Neptunium is dangerous.