Stilly, I've been thinking about your comment about changes after shifting to low-carb, high-fat eating.

For years, I have put up with lower-gut problems (diverticulosis) and minor gingivitis. Both are in abeyance -- not so much as a twinge from either end of the alimentary canal since about a week after I started this regimen. I haven't used shampoo for years as I don't seem to need it, and my hair is just as limp, fine and fly-away as it ever was, and no greasier. My fingernails also seem unchanged: as soon as they clear my fingertips, they chip and break. I keep them clipped down close to the quick, all the better for playing the mandolin.

I just finished an excellent book about ketogenic eating: "The Case for Keto" by Gary Taubes. I find it very convincing.