Consider reminding the perinatologist that women who are malnourished will make less milk.  Literature
has not been clear in showing that supplementation will increase milk production in marginally nourished
populations, but studies have had some methodological problems.  See the Institute of Medicine
Subcommittee on Lactation Report, 1991 (National Academy Press, Washington, DC).    Suggest a
nutrition consult   Armed with an appropriate nutrition plan to nourish this woman, nursing may not be
contraindicated.  The nutrients which might  be compromised in milk if the woman is malnourished would
be B12 (if vegan or malabsorption are issues), vitamin D, in absence of dairy product consumption or
appropriate maternal supplementation, possibly fluoride if water is not fluorinated.