Article: HEALTH SPECIAL: TAKE WITH A PINCH OF SALT Whether you want to have more sex or more hair, there's now a supplement that promises to help. But should we swallow the manufacturers' claims?

The public's appetite for supplements is more voracious than ever, with the market now estimated to be worth pounds 10bn a year worldwide, and an astonishing 700,000 products jostling for position on the shop shelves.

A list of Britain's biggest sellers would include vitamin C, St John's wort, selenium, glucosamine, ginkgo biloba, black cohosh, evening primrose, and flaxseed. But while the purpose of such well- established supplements is largely preventative - to stave off illness, or depression, or the ravages of age - our medicine cabinets are now filling up with an increasingly exotic range of products. Products which promise to enhance our lifestyles as well as keeping us healthy.

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