Todd Moody
> metabolic effects of our diet.  I know that I was surprised to learn 
> that Owsley "Bear" Stanley's FBG is 99 after 40+ years of a 
> meat-only diet.

Don't forget the cheese. Because cheese is reportedly a staple food of
Stanley's diet (consisting mainly of meat, eggs and cheese), I'm not
surprised at all that his FBG is high.

Milk has a "high insulinemic response" according to Cordain and others.
Results of a study by Hoyt, Hickey and Cordain "suggest that some factor
within the protein fraction was responsible for milk’s insulinotropic
effect." [Hoyt G, Hickey MS, Cordain L. Dissociation of the glycaemic and
insulinaemic responses to whole and skimmed milk. Br J Nutr 2005;93:175-177.
http://www.thepaleodiet.com/published_research/]

A Swedish study found that casein may be the main culprit in the protein
fraction of milk. [Inga Thorsdottir, PhD, et al. Different -Casein Fractions
in Icelandic Versus Scandinavian Cow's Milk May Influence Diabetogenicity of
Cow's Milk in Infancy and Explain Low Incidence of Insulin-Dependent
Diabetes Mellitus in Iceland. PEDIATRICS Vol. 106 No. 4 October 2000, pp.
719-724. http://pediatrics.aappublications.org/cgi/content/full/106/4/719] 

Casein is the main protein in most cheeses [en.wikipedia.org/wiki/Casein]. 

And for those who think that fermented dairy products may be healthy (a la
Weston A. Price Foundation), Ostman et al found that fermented dairy
products also "produced high insulinemic indexes of 90-98, which were not
significantly different from the insulinemic index of the reference
[processed, white wheat] bread." [Elin M Östman et al, Inconsistency between
glycemic and insulinemic responses to regular and fermented milk products,
American Journal of Clinical Nutrition, Vol. 74, No. 1, 96-100, July 2001.
http://www.ajcn.org/cgi/content/full/74/1/96] 

So negative health effects have been linked to the lactose, whey protein,
casein protein, betacellulin (found in fat globules in the whey fraction)
and other growth factors, and who knows what else, in both unfermented and
fermented dairy products. It may be that the only thing that's healthy for
humans in dairy products is water.