Sir: Women who might be confused or alarmed by your report (21 August) that just five units of alcohol a week could affect their chances of getting pregnant should be aware that the study concerned used American units to calculate alcohol intake. These are one-and-a-half times as big as the UK unit, on which the Government's sensible drinking guidance is based.
Women in the UK who are trying to conceive are already advised that they should not drink more than one or two units once or twice a week - only about half as much alcohol as the five American units as measured in the latest research .
The Portman Group
London W1Reuse content