What type of supplement is the leading cause of fatal poisonings in children?

Iron supplements are recognized as the leading cause of fatal poisonings in children primarily due to the high toxicity associated with excessive iron intake. Young children are particularly vulnerable because they may mistake iron tablets for candy, leading to unintentional ingestion. The body does not have a natural mechanism to excrete excess iron, and large quantities can result in serious health complications, including liver failure, metabolic acidosis, and even death.

Nutrition education emphasizes the risks associated with iron supplements, as the level of iron required for proper health is much lower than the potentially hazardous amounts found in supplement form. This knowledge is crucial for caregivers and healthcare providers to prevent accidental overdoses, which can occur even with relatively small amounts of iron compared to other supplements.