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Swedish researchers have found that baby foods used to wean infants off milk contains "alarming" levels of toxic contaminants including arsenic, lead and cadmium, The Telegraph wrote.

Popular brands from Organix, Hipp, Nestle and Holle were tested by Swedish researchers.

Scientists from the Unit of Metals and Health at Karolinska Institutet in Stockholm wrote in the journal of Food Chemistry: "Alarmingly, these complementary foods may also introduce high amounts of toxic elements such as arsenic, cadmium, lead and uranium, mainly from their raw materials.

"These elements have to be kept at an absolute minimum in food products intended for infant consumption.

"In infant foods, the high concentrations of arsenic in the rice-based foods are of particular concern."