In Ron Hoggan's article:

Hoggan R, "Considering Wheat, Rye, and Barley Proteins as Aids to
Carcinogens" _Medical Hypotheses_ 1997; 49(3): 285-288

Ron postulates that cereal grains effect the immune system, in part, by
downregulating the activation of natural killer cell activity, thus
reducing or eliminating the body's first line of defence against malignancy.

Then in Ray Peat's article "Toxicity of Unsaturated Oils", which I posted
the URL of yesterday and recommended that people read, he argues that
unsaturated fats weaken the immune system. It includes this quote
"vegetable oil is emulsified with water for intravenous injection, are now
marketed specifically for the purpose of suppressing immunity in patients
who have had organ transplants."

For those that have lost the URL it is:

  http://garcia.efn.org/~raypeat/nutri.html

Now my question is for the people that have read Duffy's _Sugar Blues_ or
another of the books pointing out problems with sugar. Is there any
evidence that sugar also harms the immune system? Do these books only blame
refined sugar, or do they also indict honey and maple syrup?

Any other foods also depress the immune system?

Don.

P.S. Please selectively quote when replying.