The whey ingredient used in Baby’s Only Gentle Dairy Whey and Gentle Dairy Whey with DHA formulas is made in accordance with the American Dairy Product Institute (ADPI) standards. Dry Whey for human consumption complies with all provisions of the U.S. Federal Food, Drug, and Cosmetic Act. Preservatives are not permitted.
Please see this link for more information https://www.adpi.org/DairyProducts/ADPIProductStandards/tabid/398/Default.aspx.
Should you have further concerns, you may wish to speak to your child's healthcare provider on the best formula for your child.