The researchers in Dundee, Scotland are following a large cohort.  The first
study showed reduced infection (particularly gastro-intestinal), following
up at 2 years.  Howie et al, BMJ 1990.  Next was published in BMJ 1998 -
showed benefits of breastfeeding and delaying solids till 16 weeks (yes,
that's delaying in Dundee terms< and also is the 'official' recommendation
in UK).  If I remember correctly, they found reduced wheeze, less body fat,
and lower blood pressure.

I believe the children are now in their teens - and they are looking at
cholesterol and glucose tolerance.  No doubt they will publish in due
course.

The study was well constructed (IMHO) and controls for confounding factors.
Mary Broadfoot, Paisley, Scotland
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The Breastfeeding Network - Independent Support and Information about
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