The cacao tree however, absorbs heavy metals like lead and cadmium from its environment, which means even organic and ethically-sourced chocolate is not immune to having trace amounts of heavy metals in it, raising concerns The cacao tree however, absorbs heavy metals like lead and cadmium from its environment, which means even organic and ethically-sourced chocolate is not immune to having trace amounts of heavy metals in it, raising concerns Health Health News, Wellbeing Tips, Diseases, Treatment and Nutrition | The Hindu