Jan. 10, 2025 -- Over-the-counter protein powders have levels of lead and heavy metals like cadmium that exceed government food safety regulations, according to a report issued by the Clean Label Project, a consumer safety nonprofit.On average, organic protein powders that were tested showed three times more lead and twice the amount of cadmium than non-organic products, the report said. Chocolate-flavored powders that were tested showed four times more lead than vanilla and up to 110 times..