The old temperance campaigners must be enjoying themselves somewhere in the hereafter. For generations they were portrayed as joyless puritans determined to separate ordinary people from one of life's harmless pleasures. The saloon, the pub and the evening glass of wine survived, while temperance disappeared into history alongside stern women carrying placards and Methodist ministers warning that demon drink would lead respectable men directly to perdition.
Science has now supplied the temperance movement with an argument considerably more formidable than anything on those old placards. Alcohol causes cancer.
That statement no longer belongs to the outer reaches of alternative medicine. The International Agency for Research on Cancer classifies alcoholic beverages as carcinogenic to humans, while the World Health Organization says there is no established safe level of alcohol consumption when it comes to cancer risk. The US National Cancer Institute likewise says there is strong scientific evidence that drinking alcohol can cause cancer.
This deserves more attention than it receives because the modern cultural understanding of alcohol remains largely based upon quantity. Everyone knows that drinking a bottle of whisky every night is a bad idea. The alcoholic staggering out of the pub at closing time is obviously damaging himself, while the respectable middle-class drinker having a glass of wine with dinner appears to inhabit an entirely different medical universe.
The cancer evidence makes that distinction considerably less comfortable. A major analysis discussed recently by Dr Joseph Mercola (linked below), examined 843 cohort and case-control studies published between 1961 and 2023. It considered alcohol in relation to twenty health conditions and reported associations with ten cancers. For several cancers, increased risk appeared at consumption below 10 grams of alcohol a day, which is less than one standard American drink.
That does not mean that one glass of wine gives you cancer, and headlines suggesting anything of the sort should be resisted. Cancer risk is probabilistic. The National Cancer Institute provides a useful illustration: among 100 women consuming less than one alcoholic drink per week, about 17 would be expected to develop an alcohol-related cancer during their lifetimes. Among women consuming one drink every day, the figure rises to about 19. For men, the corresponding figures are approximately 10 and 11.
Those numbers put the issue into perspective. For an individual, the additional absolute risk from one daily drink is not enormous. Across a population of millions of people drinking daily for decades, however, a seemingly modest increase becomes a substantial public-health burden.
Nor is this simply an epidemiological correlation looking for an explanation. The human body metabolises ethanol into acetaldehyde, a toxic chemical capable of damaging DNA and proteins. Alcohol can also contribute to oxidative stress and hormonal changes, while drinking and smoking together can greatly magnify the risks of cancers of the mouth, throat and oesophagus.
This makes our cultural treatment of alcohol rather peculiar. Imagine discovering today a new recreational drug that people consumed purely for pleasure. Scientists establish that the drug is psychoactive and dependence-producing, contributes to accidents and violence, damages the liver when consumed heavily, and is a known human carcinogen. The government nevertheless permits it to be advertised, sold in supermarkets and served at virtually every important social celebration. The chances of such a substance receiving approval today would presumably not be impressive.
Alcohol enjoys its privileged position because it arrived thousands of years before regulatory agencies did. Human beings have been fermenting things for so long that alcohol seems less like a drug than part of civilisation itself. Weddings are toasted with champagne, victories with beer and fine dinners with wine. A person refusing alcohol at a social gathering may still be asked why, while nobody thinks to ask the drinker why he requires ethanol with his steak.
The temperance campaigners saw part of this problem long before modern cancer epidemiology existed. Their concern was primarily drunkenness and its social consequences: poverty, domestic violence, neglected children, industrial accidents and the destruction caused by alcoholism. They sometimes exaggerated and sometimes descended into moralistic crusading, while Prohibition in the United States produced its own catalogue of unintended consequences.
But separating temperance from prohibition reveals a distinction that modern discussion often misses. One can conclude that drinking alcohol is medically unwise without demanding that the state send police officers to confiscate everyone's shiraz.
Temperance originally meant restraint, and in many traditions eventually came to mean abstinence from intoxicating drink. Modern medicine has unexpectedly given the latter position a rational basis. A person who does not drink avoids an exposure that increases the risk of several cancers. There is nothing puritanical about noticing that fact.
The old defence of moderate drinking has also weakened. For years we were told that a glass or two of red wine might actually be good for the heart, with the French paradox providing countless drinkers with a pleasing medical justification for opening another bottle. More recent research has raised serious questions about how much of the apparent cardiovascular benefit resulted from confounding factors and the way former drinkers were sometimes classified alongside lifelong abstainers. Cancer presents a simpler problem. The risk generally moves in the wrong direction as alcohol exposure increases.
There is another lesson here about public-health priorities. Western governments have spent decades waging campaigns against tobacco, and rightly so. Cigarette packets carry confronting photographs and cancer warnings. Smoking has been progressively removed from workplaces, restaurants, public buildings and much of popular culture. Alcohol occupies a remarkably different cultural position despite also being carcinogenic.
Nobody needs to pretend that a glass of beer carries the same risk as a packet of cigarettes. It does not. Risk depends upon dose, frequency, duration and the disease under consideration. But the enormous difference in cultural treatment is difficult to explain purely by toxicology. Alcohol is socially embedded in a way tobacco increasingly is not.
Perhaps this is where the temperance tradition deserves reconsideration without resurrecting its more authoritarian excesses. The useful message is not that drinkers are wicked or that governments should revive Prohibition. It is simply that abstinence from alcohol is a perfectly rational health decision rather than an eccentric moral position.
There are pleasures in life worth accepting some risk to enjoy, and adults are entitled to make that calculation for themselves. Someone who understands the evidence and still wants a glass of wine with dinner has made a choice about a relatively small individual risk, not committed an act of medical insanity.
But informed choice requires honest information. The comforting category of a completely harmless daily drink is increasingly difficult to defend when the substance in the glass is itself a recognised carcinogen.
The nineteenth-century temperance advocate could only point to the drunk in the gutter and the family waiting miserably at home. The old slogan was that drink was the demon in the bottle. That was theology and rhetoric. The twenty-first-century temperance advocate can point instead to oncology, epidemiology and molecular biology.
https://articles.mercola.com/sites/articles/archive/2026/08/22/single-alcoholic-drink-day-raises-risk-10-cancers.aspx