Yes, if Vibrant's Organic Acids test is ordered for a breastfeeding child, the mother should avoid apples, grapes, pears, and cranberries as well as their juices or products, and mushrooms and ribose supplements for 48 hours before urine collection.
Please see FAQ "Can I order Vibrant's Organic Acids test for a child (pediatric population)?" for information on test limitations in the pediatric population.