>>If the mom was receiving adequate replacement for her thyroid, then she
would be in a "euthyroid" state, ie: normal thyroid gland function.  If her
thyroid in her body was a normal, adequate amount then it would have no bad
effect on breastfeeding.  Sort of sounds like there is more going on here
and thyroid is getting the "blame."<<

Patrician, could still be thyroid; read on:

Miyake A; Tahara M; Koike K; TAnizawa O. Decrease in neonatal suckled milk
volume in diabetic women. (1989) Eur J Obstet Gynecol Reprod Biol, Oct
33(1):49-53.

Abstract quotes: "The amounts of suckled milk produced by patiesnt with
diabetes mellitus and hypothyroidism were significantly less than those in
other groups (other groups included hyperthyroidism, ovulatory disturbance,
and normal); there was no significant difference in milk production in the
other groups........... These data suggest that neonatal suckled milk volume
in diabetic women is decreased, and that hypothyroidism may influence the
initiation of lactation even **when the patients are euthyroid due to
treatment**."

Lisa Marasco IBCLC

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