According to https://en.wikipedia.org/wiki/Gold#Toxicity https://en.wikipedia.org/wiki/Gold#Toxicity, the gold ion is toxic, but there are no chemical processes

According to https://en.wikipedia.org/wiki/Gold#Toxicity https://en.wikipedia.org/wiki/Gold#Toxicity, the gold ion is toxic, but there are no chemical processes known to occur in the human body that can solubilize metallic gold.