I read that metabolic syndrome and arthritis may be associated with some forms of arthritis and some researchers have characterised it
as a subtype of Metabolic osteoarthritis
http://www.nature.com/nrrheum/journal/v ... 2.135.html
I was interested in your reasons for blaming diet and carbohydrates in particular.
From your article.
There are many conditions in Western industrialised societies today that were unheard of, or at least very rare, just a century ago. The same conditions are still unheard of in primitive peoples who do not have the 'benefits' of our knowledge.
Dietary causes:
Osteo Arthritis: Carbohydrate based 'healthy' diet.
Rheumatoid Arthritis: Carbohydrates; cereals; excess omega-6 vegetable oils.
I wondered what the evidence from prehistory told us.
This is what I discovered.
Osteoarthritis has been found in many ancient peoples, not least the Thule, a culture living in Alaska and the
Canadian Arctic from roughly 800-700 BP. Skeletal remains from there and elsewhere in the Artic bear evidence of osteoporosis, degenerative arthritis an Spondylolysis
http://www.uniklinik-freiburg.de/anthro ... rpaleo.pdf
http://ir.lib.uwo.ca/cgi/viewcontent.cg ... thritis%22
You cite Western Price as finding no cases of Rheumatoid Arthritis in his survey of North American Indians. Maybe he missed them. It appears that Rheumatoid Arthritis may be an unusual case of a disease of New World Origin with it appearing later in the Old World.
Rheumatoid arthritis apparently started as a disease of American Indians, who are still predisposed to this potentially crippling disease. The study of over 20,000 skeletons has now identified its spread in North America and subsequently, to Europe. Current data indicate the presence of rheumatoid arthritis in a very small area of southwestern Kentucky, west-central Tennessee, and northwestern Alabama in the Archaic period (5000-500 BC), a minor spread to Ohio in the Woodland period (500 BC-AD 1000), and an explosive spread after the late 18th century.
I know nothing about the diet of the North American Indian in prehistory . The source I found suggests that though some grain was grown in the latter Archaic period, it was a small part of the diet and that it consisted of Chenopod, Maygrass and Aramanth, none of which contain gluten.
http://www.nature.com/nrrheum/journal/v ... 21_F1.html
I don't have full access to this paper but this pretty timeline demonstrates the theory.
http://mcclungmuseum.utk.edu/research/r ... -05txt.htm
http://mcclungmuseum.utk.edu/research/r ... -27txt.htm
I'm no expert on this, don't claim to be but maybe the health of some earlier groups of people has been overstated.
I doubt if I'll come back to this question but I've spent an interesting afternoon looking at post mortem reports :lol: