> I do think that we need to be mindful that reflux can be caused by
> more than one problem. Sometimes it may be dairy (allergy), but it
> can also be a loose esophageal sphincter.

I have been reading up on reflux since MJ launced EnfalacAR in
Australia, a thickened milk-based formula that MJ tells us will not
only cure, but prevent reflux. We know of mothers who have weaned
off breastmilk onto this product because of the promotional hype.

There was a good Italian study published last year that showed that
41.8% of gastroesophageal reflux (GER) was associated with, and
probably caused by, cow's milk allergy (CMA).  The study included
breastfed, mixed fed and formula fed infants and they reported
finding no difference for sex, age or type of feeding. Infants with
both GER and CMA had a greater frequency of diarrhea (p<0.0001) and
atopic dermatitis (p<0.0002). However, diagnosis of CMA by clinical
history was only possible in about 25% of cases. The authors
conclude that all infants with GER be screened for possible
concomitant CMA.

Ref:  Giuseppe Iacono, MD et al  "Gastroesophageal reflux and cow's
milk allergy in infants: a prospective study"  J Allergy Clin
Immunology (1996) 97:3 822-827