Moderation is one of those words that sounds like a conclusion when it’s really the beginning of an argument. Eat in moderation. Drink in moderation. Exercise in moderation, even. The advice is offered as though the definition is obvious and agreed upon, when in fact it’s almost never specified.
What, precisely, is moderate?
The word does a lot of work
In common usage, “moderation” functions as a reassurance. It signals that you’re not doing the thing excessively: that you’re sensible, measured, in control. It carries a vaguely classical association that makes it feel timeless and rational.
But a word that means “not too much” is only useful if you know what “too much” looks like. And on that question, the guidance varies considerably depending on who is providing it, when they are providing it, and what interests they represent.
Guidelines are not neutral
Official guidelines about what constitutes moderate consumption, whether in food, alcohol, or other areas, are typically produced by committees of experts working within institutional frameworks. Those frameworks involve government departments, industry bodies, scientific advisory panels, and public health organisations.
The composition of those committees matters. So do the studies they cite, the thresholds they choose, and the way recommendations get worded before they reach the public. None of this means that all guidelines are corrupt or unreliable. But they are not simply the dispassionate output of neutral science.
Recommended thresholds change over time. When they do, the revision is rarely front-page news, even though the previous threshold had been treated, for years, as settled.
The practical problem
The deeper issue with “moderation” as advice is that it requires calibration most people don’t have access to.
Telling someone to eat in moderation assumes they know what a moderate portion looks like, that their understanding aligns with the guideline, and that the guideline itself is well-founded. Telling someone to drink in moderation assumes they know what a unit is, that they’re accurately tracking their consumption, and that the recommended limit is actually right for them, given their weight, health status, family history, and other factors.
Most of the time, none of those assumptions hold cleanly.
Why the word persists anyway
“Moderation” persists as advice partly because it’s easier to say than a specific number, partly because specific numbers invite specific challenges, and partly because it allows multiple interests to coexist without conflict. An industry can endorse moderation without endorsing abstinence. A health body can recommend moderation without triggering alarm. Everyone agrees in principle, and no one has to commit to a definition.
It is, in that sense, a remarkably useful word. Useful, at least, for the people using it.
For the person receiving the advice, it does rather less work. The question of what exactly they should be doing remains unanswered, dressed up in language that implies it’s already been settled.
The Quiet Con by Ian Wilkinson expands this argument into a full account of how drinking was made to feel normal, harmless, and beyond serious question. Paperback £9.99. Kindle £2.99. Free on Kindle Unlimited. Read more about the book, see edition details, and buy your copy here. Understanding what the low-risk drinking guidelines actually mean is a useful place to start when trying to make sense of the shifting advice.