Walk into almost any supermarket in Europe and you can watch a food trend happening in real time.
The shelf that once shouted “0% fat” now shouts “20g protein”, and this is not just marketing noise:
seven out of ten consumers say they are deliberately trying to eat more protein, against six in ten
only four years ago. Nearly one new product in ten launched in Europe now carries a protein claim,
and supermarkets have begun putting their own labels on it, the surest sign that a niche has become
a habit.
The first thing worth knowing is that the words on the pack promise less than they appear to. In
Europe a food can be called high in protein based on the share of its calories that come from protein,
not the grams inside, so an airy, low-calorie snack can qualify while a genuinely protein-rich food
misses out. When Italian researchers examined 418 products carrying protein claims, they found
enormous variation: crackers where protein accounted for around a sixth of the calories, processed
meats where it accounted for nearly three quarters. Their conclusion was that the claim tells
shoppers very little about what they are actually buying.
The second is that quantity matters far less than most people assume. The body can only put a
limited amount of protein to work at once, somewhere around 25 to 30 grams, so what counts is
spreading it across the day rather than piling it all into dinner and breakfast is where nearly
everyone falls short. Quality matters too: eggs, dairy, fish and meat carry the full set of building
blocks, while most single plant sources are short of one or two, which is why the better plant-based
products blend several together. And a bar with ten grams of protein, whatever the wrapper says, is
a snack rather than a meal.
So is this a fad? The evidence says no, though not quite for the reasons the packaging suggests.
Populations are ageing, and from around fifty we lose muscle steadily unless we do something about
it. Protein combined with movement is the only thing that reliably slows that down, and muscle is
what keeps people independent. The new weight-loss injections have added momentum: they
suppress appetite so effectively that patients often eat far too little protein and risk losing muscle
along with fat, so doctors now set a protein target alongside the drug. In January 2026 the American
dietary guidelines raised their recommended intake substantially. The caveat is that most European
adults already eat more protein than they need – for a healthy, sedentary adult, the extra scoop
solves a problem that isn’t there.
The risks are quieter than the headlines suggest. In healthy people, eating more protein does not
damage the kidneys. What it does do is crowd out other things – fibre, vegetables, whole grains – at a
moment when Europe already eats far too little of them. And many products carrying the protein
badge are heavily processed and score poorly on almost every other nutritional measure.
Cardiologists have already pointed out the awkward arithmetic of eating much more protein and
dairy while keeping saturated fat down.
Then there is the cost, which is where this stops being purely a nutrition story. Products with a
protein claim sell for up to 12% more than their ordinary equivalents, and in some cases nearer 60%
more per kilo for what is essentially the same thing in a different box. The raw material has more
than doubled in price since 2024 and rose again in early 2026, and much of that increase has yet to
reach the shelf. Around half of shoppers now say protein products have visibly pushed up their
weekly bill.
Which points to where this goes next. Bars and shakes are a crowded, expensive corner of the
market; the interesting territory is protein arriving quietly in food people already eat, soups, bread,
chilled ready meals, the ordinary Mediterranean plate, at honest doses, paired with fibre rather than
shouted about on its own. The trend is real and it will last. The open question is whether the
industry chooses to sell it as nutrition or as a badge.