Health officials have linked almost a dozen salmonella cases across seven states to powdered supplements available at Sam’s Club, as announced on Friday.

The U.S. Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) have launched an investigation into illnesses associated with Member’s Mark Super Greens Powder Supplements, which were distributed both in stores nationwide and online.

According to the CDC, these products have been pulled from shelves due to the presence of moringa leaf powder potentially contaminated with salmonella.