evidence: Addressing false claims that Vitamin K shots have toxic levels of aluminum, Hepatitis B vaccines contain toxic ingredients, and more [...] The claim that vitamin K shots are dangerous to neonates because they contain toxic levels of aluminum has appeared before, such as in this post by Children’s Health Defense, an anti-vaccine website that often disseminates vaccine disinformation. Similar claims have been reviewed in the past and found to be inaccurate. [...] The claim that vitamin K shots are dangerous because they contain 20,000 times the recommended amount of aluminum is inaccurate. The U.S. Food and Drug Administration (FDA) recommends that the total allowable exposure to aluminum through the intravenous route not exceed five micrograms per kilogram of body weight per day. One microgram is one thousandth of a milligram, or one millionth of a gram.