Chocolate, particularly dark chocolate, may contain appreciable levels of toxic heavy metals, such as cadmium, which may be present naturally in the soil of cocoa plantations, particularly in Latin America.[47][48] For products containing over 50% cocoa, the European Commission has set a limit for cadmium of 0.8 mg/kg, while for chocolate containing between 30%–50% cocoa, the limit is 0.3 mg/kg.[47] After these limits came into enforcement in 2019, similar regulations were enforced in other jurisdictions across the world.[49] The state of California recommends a maximum daily intake of 4.1 micrograms of cadmium.[50]
A 2024 report analyzing dark chocolate and cocoa samples in the United States from 2014 to 2022 found that multiple samples exceeded Prop 65 levels for heavy metals: 43% of samples exceeding levels for lead, and 35% exceeding levels for cadmium.[51]
and full of toxic heavy metals
https://en.wikipedia.org/wiki/Dark_chocolate
Cadmium is where Cadbury’s chocolate gets its name