Here’s what Hydration and health: a review says in the British Nutrition Foundation Nutrition Bulletin of March 2010:
‘The body’s first response … is to conserve water by signalling the kidney to concentrate the urine … The initiation of the thirst response then occurs after this, when loss of body mass is 1% to 2%.’
Richard Hall is chairman of Zenith International. You can also read his blog at BevBlog.
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