Historical note Eating foods containing microorganisms to improve health has a long tradition. As far back as 1 908, Metchnikoff, the Nobel laureate, stated that 'ingested lactobacilli can displace toxin-producing bacteria, promoting health and prolonging life' (Elmer 2001). The term 'probiotics' was first coined in 1 965 in reference to substances produced by protozoa that stimulated the growth of other organisms. It has since been applied to those microorganisms found naturally in foods that are able to improve health by stimulating the growth of beneficial organisms. Although it has taken the most part of a century for scientists to investigate their health benefits, there are now several thousand studies on probiotics available on Medline, the majority published since 2000.

How to Stay Young

How to Stay Young

For centuries, ever since the legendary Ponce de Leon went searching for the elusive Fountain of Youth, people have been looking for ways to slow down the aging process. Medical science has made great strides in keeping people alive longer by preventing and curing disease, and helping people to live healthier lives. Average life expectancy keeps increasing, and most of us can look forward to the chance to live much longer lives than our ancestors.

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