Hi Sylvia and all! I see nothing in my reference material to indicate that Ginko Biloba would be a problem herb to take during lactation. However, as always, I would have this Mom watch closely for any changes in baby bowel habits or unusual rashes, just in case there may be a sensitivity to the herb. I hope this information helps. Wishing you health and wellness! Tami Karnes, One With Nature Certified Herbalist P.O. Box 1724 Sedona, AZ Sedona, AZ 86339-1724 [log in to unmask] (800) 230-5166 http://home.earthlink.net/~onewthnature/ offering a complete line of hand prepared herbal therapies free catalog available upon request