:Despite Arsenic’s reputation as a highly toxic substance, this element may actually be necessary for good health. Studies of animals such as chickens, rats, goats and pigs show that it is necessary for proper growth, development and reproduction. In these studies, the main symptom of not getting enough arsenic was retarded growth and development.<ref>[http://www.mii.org/periodic/LifeElement.html The Role of Elements in Life Processes | Mineral Information Institute]</ref> | :Despite Arsenic’s reputation as a highly toxic substance, this element may actually be necessary for good health. Studies of animals such as chickens, rats, goats and pigs show that it is necessary for proper growth, development and reproduction. In these studies, the main symptom of not getting enough arsenic was retarded growth and development.<ref>[http://www.mii.org/periodic/LifeElement.html The Role of Elements in Life Processes | Mineral Information Institute]</ref> |