Hidden hunger is growing as our crops lose nutrients – Earth.com
07-23-2026
Hidden hunger is growing as our crops lose nutrients
BySanjana Gajbhiye
Earth.com staff writer
Hunger usually brings to mind an empty plate and a growling stomach. There is a second, sneakier version that fills the plate completely and still leaves the body starved of what it needs most
Nutritionists call it hidden hunger, and it stems from missing vitamins and minerals rather than missing calories
More than two billion people live with it, which works out to roughly a quarter of everyone on the planet
More than half the global population falls short on vitamins B2, B9, C and E, along with the minerals calcium, iron and iodine. The gap is not limited to poorer nations either. It turns up just as clearly in wealthy countries
What makes the picture stranger is that the shortage is deepening for reasons that have almost nothing to do with personal food choices. The answer sits inside the crops themselves, shaped by a steadily warming atmosphere
Rice has a nutrition problem
Of all the world’s major staple crops, cooked white rice delivers the fewest nutrients, trailing behind both corn and wheat by a wide margin
That is a serious problem, since rice remains the single most important
Across much of Asia, a person can eat three full plates of rice a day and still miss the recommended intake of key vitamins and minerals. The grain fills bellies, yet it leaves a nutritional hole that ordinary portions simply cannot close
Climate change is now making a bad situation worse. As carbon dioxide builds up in the air, it thins out the protein, B vitamins and minerals that grain is able to store
They would join the 2.5 billion who already fail to get enough folate, one of the B vitamins the body cannot do without
Vitamins that protect plants
Here is the twist that a sweeping new review pulls into focus
Mustafa Bulut of the Leibniz Institute of Plant Biochemistry (IPB) and colleagues highlight a surprising overlap between what keeps plants alive and what keeps people healthy
The very vitamins our bodies depend on turn out to be the same ones plants call on to survive difficult conditions
Crops treated with thiamine, which is vitamin B1, cope with drought noticeably better than those without it
Folic acid and riboflavin, meanwhile, help plants push through dry spells and salty soil that would otherwise stunt them. A crop bred to hold more nutrition can therefore also stand up better to a punishing season
This overlap is why climate change lands as a double blow on the food supply. It drains nutrients from crops at the very moment it hurls more drought, heat and flooding at the fields that grow them
The limits of crossbreeding
For most of the last century, plant breeders pursued sheer yield above almost everything else
The Green Revolution of the 1960s delivered exactly that, doubling harvests of wheat, rice and corn across Asia
Those bigger harvests are credited with saving more than one billion people from starvation. Yet the same push for quantity slowly hollowed out the nutritional value of what farmers grew
Conventional crossbreeding can nudge a handful of nutrients upward, as it has done for iron and zinc in beans and wheat crops. What it cannot do is add a vitamin that a plant’s genes were never equipped to make
The approach is also slow to the point of frustration. A single improved variety can take anywhere from eight to 15 years to reach a farmer’s field, and hunger rarely waits that long
What gene editing adds
Newer tools break through several of those old walls at once. They act far more quickly than crossbreeding, with a precision it could never reach
The most famous product of genetic engineering is Golden Rice, its grains tinted a soft gold by the provitamin A built into them. That crop was designed to fight the childhood blindness that vitamin A shortage causes across parts of Asia
CRISPR-based editing pushes precision even further. It can rewrite one chosen gene on its own, rather than leaving the outcome to chance
One CRISPR-edited rice line already carries more iron and zinc in its grain. A fresh variety made this way can be ready in just two to six years, a small fraction of the wait the older methods still demand
Europe gives gene editing room
For a long time, tight regulation kept these methods on a short leash, nowhere more so than in Europe. Getting a genetically modified plant approved for cultivation could easily take more than a decade
That barrier began to shift in June 2026. The European Parliament adopted a revised set of rules that treats many gene-edited crops the same way it treats conventionally bred ones
“This is a great opportunity to accelerate the development of biofortified crops and effectively combat hidden hunger,” said Bulut
The new approach covers precise edits that could just as easily have occurred through natural mutation or ordinary breeding. It opens a far shorter road for crops engineered to carry the nutrients that people are missing
One approach is not enough
None of these tools can wipe out hidden hunger on its own, which is why the review calls for combining them
Conventional breeding still carries broad public trust, while gene editing brings the speed and reach that slower crossbreeding could never hope to match
Every promising variety has to begin its life in a laboratory and then survive years of field trials before it ever feeds a single family
Keeping that long pipeline alive depends on steady, patient funding that does not vanish between election cycles
The goal was never a single perfect super-crop grown everywhere. It is a broader, more nutrient-rich harvest, one sturdy enough to hold its ground as the climate grows harsher
The study is published in the journal Nature
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