Heavy Metals

Scientists estimate that the Earth's core contains enough gold to cover the planet's surface with a layer nearly 1.5 feet thick. This immense amount of heavy metals sank to the core during Earth's formation due to gravity.

While many heavy metals are toxic, pure 24-karat gold can pass through the human digestive system without being absorbed, often used in gourmet food decoration or certain medical treatments. It has no nutritional value.