More food for thought. I had a good squint at the nails last night and this morning, and did catch the odd (small) white spot, and there are certainly some ridge-like vertical lines. Hmmm. Zinc, eh?

Checking web sites, I see that some of the foods proportionately richest in zinc are oysters, shellfish and brewer's yeast. Sounds good to me! It also says that zinc is important for sexual health. Sounds even better! So, I'm going to get cracking on oysters, crab, lobster, prawns, shrimp and crayfish, washed down with several pints of good ale and in the company of the woman of my choice.

If that doesn't work - and I may be some time trying this - then I shall have recourse to the salon ladies...