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Researchers analyzed 72 cocoa-based foods — including dark chocolate, often praised as a heart-healthy treat — over eight years. They found that 43% of the products contained an amount of lead ...
The report, published Oct. 25, 2023, in Consumer Reports, found heavy metals — lead and cadmium — in chocolate chips, chocolate bars, brownie mix and hot cocoa from major retailers and ...
They found that the chocolate samples ranged from 0 to as high as 3.316 mcg per daily serving. Levels of cadmium, a carcinogen at high levels, ranged from 0.29 to 14.12 mcg, with the limit being 4 ...
Dark chocolate had higher amounts of lead and calcium than some of the FDA's most contaminated foods, one expert said. - Gabi Musat/500px/Getty Images/File. Lead and cadmium found, but no arsenic.
One study showed the mean lead level in milk chocolate candy bars was 0.027 μg lead per gram of candy; [85] another study found that some chocolate purchased at U.S. supermarkets contained up to 0.965 μg per gram, close to the international (voluntary) standard limit for lead in cocoa powder or beans, which is 1 μg of lead per gram. [86]
After eight years of testing dark chocolate, a new study reveals many products were contaminated with lead and cadmium — two heavy metals toxic to human health.
A July 2024 study found 43% of six dozen dark chocolate products exceeded California’s Proposition 65’s maximum allowable dose level for lead of 0.5 parts per million.
A 2023 consumer reports study found elevated levels of lead or cadmium in a third of dark chocolate — but new research found metals in fewer than 3% of samples.