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chendexin木虫 (正式写手)
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That good gut feeling
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Your whole wellbeing can benefit from friendly bacteria Probiotic products are among the best-selling foodstuff in supermarkets. Probiotic drinks, supplements and foods contain types of bacteria that naturally colonise your intestines and help you digest food. The theory is that by feeding these live “friendly” bacteria into our system, we overwhelm any bad bugs in our gut, and help promote the natural balance of micro-organisms in our digestive system. This, it is claimed, helps digestion, and reduces the risk of problems such as diarrhoea and irritable bowel syndrome. There is also a theory that probiotics can help boost your immune system — some scientists believe that these are under-stimulated in today’s super-clean environments, and that introducing good bacteria into our guts helps kick-start the whole process. Because of this, there is speculation they may help those conditions associated with an immune system that overreacts — such as eczema and asthma. Some of this is backed up by studies — particularly in the area of gut health. Three major studies indicate that probiotics can reduce the duration of acute diarrhoea in children by a day. There are also indications that they may help to prevent diarrhoea caused by bacteria generally. Other trials indicate that some types of probiotics may help to control diseases such as ulcerative colitis. Recent studies have also given a boost to claims that some probiotics can strengthen the immune system. A paper presented at the European Influenza Conference last year indicated that probiotics combined with vitamin and mineral supplements could reduce the duration of the common cold. And then another study published in November 2004 added further weight by showing that people taking probiotics took fewer sick days than a group who took no probiotics, and this was especially pronounced in night-shift workers. So far, however, studies on their effects on eczema, asthma, cholesterol and immunity have not produced conclusive results either way. Yet the potential role of friendly bacteria in promoting digestive health is becoming increasingly unassailable. And given that more people call NHS Direct about gut problems than anything else, that could have significant implications. |
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