Wheat and other gluten grains

 http://jccglutenfree.googlepages.com/

http://wholehealthsource.blogspot.com/search/label/gluten

http://www.paleonu.com/panu-weblog/2009/6/23/the-argument-against-cereal-grains.html

Pros: 
fermented grains may have fewer antinutrients, prebiotic
Cons: 
1 out of 100 people is gluten intolerant (celiac) and many more may be gluten sensitive = both conditions very much underdiagnosed and can cause longterm damage and death, antinutrients like phytic acid and lectins are known to damage the gut, high in omega-3 fatty acids, other foods have more nutrients without the downsides of gluten