Doctor, doctor

Dr Rosemary Leonard MBE is a GP with many years’ experience working in London’s top teaching hospitals

I have ridges across several fingernails. Do I need supplements?

Horizontal ridges in nails are usually due to trauma from picking at or over-zealous manicuring of the cuticle. Try not to pick (ask others to tell you if you do it subconsciously) and be very gentle with DIY manicures.

The existing ridges should slowly grow out, and no more should form. If you eat a healthy balanced diet, your nails are unlikely to benefit from supplements.

Contact Dr Leonard at S Magazine, One Canada Square, Canary Wharf, London E14 5AP, or email dr.leonard@ express.co.uk. Dr Leonard regrets that she cannot reply personally to letters. Read her column every Tuesday in the Daily Express