Michener died 10 days later. His primary cause of death was stated in the report as heart failure and kidney failure, excess calcium levels, and vitamin D toxicity, also known as hypervitaminosis D.
Nevertheless, depending on the concentrations, vitamin A can work as either an antioxidant or pro-oxidant [at a dose ≥ 25,000 IU/Kg of body weight (172)] and lead to cases of hypervitaminosis and even ...