Simon -- I would differ with you that it is logical that ingesting milk
would hasten the onset of lactose intolerance. My sister and I experienced
it at roughly the same chronological age. However, I drank much more milk
than she did. In fact, I averaged about 6 glasses of skim milk a day.
Therefore, I have concluded it was biological and possibly genetic factors
which brought on the intolerance. Veering in a slightly different direction,
I'm relatively convinced, but can't prove, that the chemicals we eat or are
exposed to in our lifetime affect our health. Hence, something that sister
and I were exposed to as children may have contributed to the intolerance.
Anyway, that's my 2 cents worth!!

Don

P.S. My intolerance increased over a 10 year period to the point where I
become ill when I eat anything with milk in it. I refer to it as a slight
milk allergy. I may not be allergic in a strictly medical sense, but I do
feel unwell for 2-3 days after the incident.

>My intolerence to milk protein slowly developed over a long period of time.
>Fifty years or so.  Whether or not my ingesting milk products accelerated
the process, is an unanswerable question.
>
>Logically, it seems reasonable to assume ingesting of milk products
hastened the processs.