From Doug Astill
I spotted a flaw in your report on the health benefits of avoiding alcohol for a month in a study suggested by and involving New Scientist staff (4 January, p 6).
An average reduction of blood glucose level from 5.1 to 4.3 millimoles per litre isn’t 23 per cent as you stated; it is about 15.5 per cent. No wonder liver consultant Kevin Moore was startled.
Cambridge, UK
