Carmel-based Candy Dynamics has expanded a voluntary recall of its Toxic Waste brand Nuclear Sludge products because they may contain too much lead.

Earlier this month, the company recalled all flavors of its 0.7-ounce Nuclear Sludge Chew Bars because tests showed elevated levels of lead in a batch of cherry-flavored candy. On Thursday, it added the 0.3-ounce size to the recall.

The candy was imported from Pakistan and distributed nationwide through retail stores and mail orders.

Company officials were not available for comment Monday afternoon, but Candy Dynamics said in a prepared statement that it would discontinue the sale of Nuclear Sludge products.

“Further testing by the company indicates that while some of the smaller sized products were below the FDA limit, some contain elevated levels of lead,” according to the statement, made available by the Food and Drug Administration and the Indiana Department of Health.

Overexposure to lead could damage nerve connections and cause blood and brain disorders, the Health Department said. Symptoms of lead toxicity include stomach aches, colic, nausea, vomiting and insomnia.

No lead-related illnesses have been reported, the statement said, and only the Nuclear Sludge products are affected by the recall.

Founded in 2006, Candy Dynamics made a name for itself with its unusual "double-action" sour recipe, eye-catching packaging and unforgettable names like Toxic Waste, Nuclear Sludge and Hi-Voltage Bubble Gum.

As IBJ reported this week, the startup—formally known as Circle City Marketing and Distributing—allegedly was funded with some of the assets from a failed business that sold dietary supplements called Mini Thins. Founder Richard A. Deer is facing allegations of bankruptcy fraud as a result.