Gadolinium is an element from the group of rare earth metals, the high concentration of which can lead to serious health disorders. Most often, we get poisoned by gadolinium through inhalation, ingestion or through the skin. In this article, we will present the harmful effects of high levels of gadolinium in the body, the main sources of poisoning, its symptoms, effective diagnostics, as well as ways to cleanse the body of excess gadolinium.