Katherine,

Here are some references you can give to the nutrition teacher who says
it's all baloney.  All of these studies report significant protective
effects against allergy when mothers avoid cow's milk during pregnancy:

Lovegrove JA, et al. Dietary factors influencing levels of food antibodies
and antigens in breast milk. Acta Paediatr. 1996 Jul; 85(7): 778-784.

Marini A, et al. Effects of a dietary and environmental prevention
programme on the incidence of allergic symptoms in high atopic risk
infants: three years' follow-up. Acta Paediatr Suppl. 1996 May; 414: 1-21.

Lovegrove JA, et al. The immunological and long-term atopic outcome of
infants born to women following a milk-free diet during late pregnancy and
lactation: a pilot study. Br J Nutr. 1994 Feb; 71(2): 223-238.

Zeiger RS, et al. Effect of combined maternal and infant food-allergen
avoidance on development of atopy in early infancy: a randomized study. J
Allergy Clin Immunol. 1989 Jul; 84(1): 72-89.

Chandra RK, et al. Influence of maternal food antigen avoidance during
pregnancy and lactation on incidence of atopic eczema in infants. Clin
Allergy. 1986 Nov; 16(6): 563-569

There you go!

Ginna Wall, MN, IBCLC, Lactation Services Coordinator
University of Washington Medical Center, Mailbox 356153
1959 NE Pacific Street, Seattle WA 98195
Voicemail: (206)548-6368, Fax: (206)548-7665