A recent study conducted by scientists at George Washington University found that over 70 dark chocolate products sold nationwide contained excessive amounts of heavy metals. Specifically, 43% of the products exceeded acceptable levels of lead, and 35% exceeded cadmium levels, based on California guidelines. The study also found that organic cocoa products were more likely to have higher levels of cadmium and lead, contrary to common perception. While the FDA does not set limits for cadmium or arsenic, the majority of chocolate bars in the study were below the recommended level for lead. Researchers emphasized the importance of limiting consumption of dark chocolate due to heavy metal contamination. There is no safe level of lead, and the metals can enter chocolate products through various processes like harvesting and manufacturing. Despite differing opinions on the strictness of guidelines, experts recommend consuming no more than an ounce of dark chocolate per day and limiting intake for children and pregnant women. The study did not look at milk chocolate, but it is believed to have a lower risk of heavy metal contamination due to lower levels of cocoa powder. Overall, the study highlights the need for increased awareness of heavy metal exposure in food products and the importance of moderation in consumption.
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Heavy metals, such as lead, discovered in numerous dark chocolate bars
