I've seen this concept come up a lot on this list and would like to understand it better. Have been primal since early July and in the last 6 weeks or so have had rosacea/cold sore break-outs, allergy flare-ups, yeast and urinary tract infections (these last 2 for the first time in many, many years) and intermittent insomnia. After reading Paul Jaminet I decided to up the starches (yams, rice) in my diet a little bit, thinking the lo-carb dried out all the protective mucus. But I'd appreciate other ideas. This spate of symptoms took me by surprise.