Parents across China won't have worry any more. A clinical investigation has found no evidence that milk powder made by Synutra International caused three infant girls to have abnormal hormone levels.

China's Health Ministry made the announcement on Sunday, after a panel of food and health experts organized by the Center for Disease Control and Prevention finished sample tests on the milk powder.

The panel has tested the residue from milk powder consumed by the three infant girls, as well 42 samples of Synutra products on the market and 31 samples of diary products from other producers.

Results show that the hormone content of the Synutra milk powder is within normal standards. The ministry said Synutra International should not be blamed for the triggering early signs of puberty in the infants.