In a population with an average consumption of 5 liters of pure alcohol, the prevalence of persons with an average daily consumption of 10 centiliters will be 1.5 percent, while the corresponding prevalence rates in populations with an average consumption level of 10 and 20 liters, respectively, will be 4% and 12%.
As the limit defining heavy consumption we shall employ 10 centiliters of pure alcohol daily, or 36.5 liters per year.
A series of empirical studies point in the direction that even established heavy consumers of alcohol are not able to metabolize more than 40 or 50 centiliters of pure alcohol daily (Lelbach 1974 for a survey of the literature).
The association between consumption of home- distilled spirits, frequency during the last 12 months, and other habits among boys in Stockholm County, 1998, centiliters and percentages
The association between consumption of home- distilled spirits, frequency during the last 12 months, and other habits among girls in Stockholm County, 1996, centiliters and percentages
Let us assume that the health optimum is somewhere between two and four dally drinks of an average alcohol content of 1.5 centiliters
. On an annual level, the lower limit corresponds to 11 liters and the higher limit to 22 liters.