Academy of Breastfeeding Medicine spells it all out nicely in their policy on supplementation.
http://www.bfmed.org/ace-images/ProtocolSuppl3rev.pdf
Linda Anderegg, BSN, RNC, IBCLC, RLC
Lactation Consultant
Silver Cross Hospital
1200 Maple Road
Joliet, IL 60432
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(815)740-1234 ext. 7321
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