Powder supplements sold at Sam's Club stores are linked to at least 11 cases of Salmonella in seven states, federal health authorities said Friday.

Member's Mark Super Greens Powder Supplements, which were sold at the discount chain's stores nationwide and online, have been pulled from store shelves because they contain moringa leaf powder that may be contaminated with Salmonella bacteria, the U.S. Centers for Disease Control and Prevention said in an alert posted on its website.

"If you have any of the products listed below in your home, throw them out or return them to the store," the agency said, while noting that the product has not been recalled.

Three of the people who contracted Salmonella were hospitalized, according to the agency. Illnesses, which were reported between May an

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