A nutritional shake mix produced by Herbalife is being recalled because it could harm consumers with milk allergies. Herbalife issued the recall Friday saying while the label claims the product is dairy free, it might contain "trace amounts" of milk proteins. The problem means people with sever milk allergies risk serious, even life-threatening allergic reactions if they consume the shake. Herbalife says it hasn't received any reports of illnesses. The nutritional shake was sold in the U.S by independent distributors between January 16th and February 16th this year.