Is European blueberries Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use European blueberries? Is European blueberries safe for nursing mother and child? Does European blueberries extracts into breast milk? Does European blueberries has any long term or short term side effects on infants? Can European blueberries influence milk supply or can European blueberries decrease milk supply in lactating mothers?

European blueberries (Vaccinium myrtillus) fruit contains tannins and anthocyanidins. European blueberries is most often used for eye disorders. European blueberries was reportedly used as a European folk medicine to stop milk flow. No data exist on the excretion of any components of European blueberries into breastmilk or on the safety and efficacy of European blueberries in nursing mothers or infants. European blueberries preparations are generally well tolerated as a food, but should be avoided in patients allergic to European blueberries, cranberry, blueberry, and other Vaccinium species. No recommendations can be made on the use of large quantities of European blueberries products during breastfeeding. Dietary supplements do not require pre-marketing approval from the U.S. Food and Drug Administration. Manufacturers are responsible to ensure the safety, but do not need to the safety and effectiveness of dietary supplements before they are marketed. Dietary supplements may contain multiple ingredients, and differences are often found between labeled and actual ingredients or their amounts. A manufacturer may contract with an independent organization to verify the quality of a product or its ingredients, but that does certify the safety or effectiveness of a product. Because of the above issues, clinical testing results on one product may not be applicable to other products. More detailed information #about dietary supplements# is available elsewhere on the LactMed Web site.