“You’re looking well.”
I’m hearing that a lot lately. There’s a reason for it. I’ve changed — not for vanity, not even primarily for health — but because my conscience would no longer allow me to keep eating the way I was.
For most of my adult life, meat wasn’t just food; it was the centre of the plate. A good steak marked the end of a hard week. Lamb meant Easter. As a European raised on a Western diet, meat was a staple, not a luxury.
But in recent years I’ve started questioning that habit. Not emotionally — mathematically.
We are nudging past 8.25 billion people on this planet, adding roughly another billion every 12 to 15 years. It took humanity until the 1800s to reach its first billion. That acceleration alone should make us pause.
With that in mind, I had to ask myself: can I justify my Western, meat-heavy diet?
The land — the ultimate source of all food — doesn’t care about tradition or taste. It has finite capacity. And we are pushing it hard.
From Field to Plate: The Cost in Acres
Roughly half of all habitable land on Earth is used for agriculture. Of that agricultural land, the majority is devoted to livestock — either grazing animals or growing cereals and protein crops to feed them.
Feeding livestock in order to feed humans is inherently inefficient. In the case of beef, as much as 80–85% of the calorific value in feed can be lost in conversion. In simple terms, food that could feed several people ends up feeding one.
When you convert land use into acres per person, the picture sharpens:
- A largely plant-based or flexitarian diet can use as little as 1–2 acres per person, including vegetables, grains, fruit and modest dairy or eggs.
- A typical Western omnivorous diet requires several times that.
- Once grazing, forage and feed crops are fully accounted for, high-meat diets can average upwards of 15 acres per person.
That isn’t a fringe estimate. It reflects the biological reality that producing calories through livestock consumes far more land than producing them directly from crops.
Researchers estimate that if the world shifted to plant-based diets, agricultural land use could fall by around 75% — an area equivalent to North and South America combined. That figure alone should make anyone stop and think.
Land is not a limitless resource. Every acre committed to inefficient calorie production is an acre unavailable for direct human nourishment — or for restoring ecosystems, or for buffering carbon.
And our population continues to rise.
Land Use and Food Poverty
At the same time, more than 1.3 billion people live with chronic food poverty. Hundreds of millions of them are children who do not reliably know where their next meal is coming from.
Yes, hunger is driven by poverty, conflict and distribution failures. But land allocation is not irrelevant. When vast areas of productive farmland are used to feed livestock primarily for wealthier populations, the inefficiency reverberates globally.
If we continue consuming land at current rates, that figure of 1.3 billion can only grow.
These are difficult facts to sit with. They have certainly been difficult for me.
Why I Changed
I didn’t reach this conclusion as a trend follower. I reached it as a farmer who finally did the arithmetic and realised that, even as a food producer, I was part of the problem.
Five months ago, I shifted most of my diet away from meat. I didn’t become vegetarian. I still enjoy lamb occasionally, and I still enjoy a good steak. But meat no longer anchors every meal.
My weight dropped from 19 stone 18 pounds to 16 stone 3 pounds in five months. That wasn’t the objective; it was a consequence. The real shift was intellectual.
This is the second time I’ve tried to change. The first time I drifted back. This time it has stuck — not out of virtue, but because I can’t unsee the land arithmetic or ignore the scale of hunger worldwide.
I can’t pretend my plate is neutral.
Limits, Not Denial
Starvation is not inevitable. It is constructed — through policy, economics and choices, including dietary choices in wealthy nations.
We are not short of soil or seed. We are constrained by how we choose to use them.
No diet is morally pure or impure. But some are more demanding of finite land than others. And when billions of acres are involved, tradition becomes a luxury.
I didn’t write this to lecture anyone. I wrote it to explain to myself why I am changing.
As farmers, we understand limits instinctively. You cannot graze beyond carrying capacity. You cannot pull more yield from soil than it can give.
Our own farm is small. Growing vegetables, it can feed a village. Farmed purely for livestock, it would struggle to feed just me.
That is the arithmetic I can no longer ignore.
