Protein is having a decade. The evidence is narrower.
Protein sells everything from water to cereal. What the requirement research actually supports.
By The Weekend · · 2 min read
Protein is the decade's halo nutrient — added to cereals, breads, even water, at a price premium the label alone justifies. The evidence supports more protein than official minimums for some groups. It does not support most of what the supermarket is doing with the word.
What the evidence says
The standard recommended intake was set to prevent deficiency, not to optimise anything, and research on ageing, dieting and training supports intakes meaningfully above it for three groups: older adults fighting muscle loss, anyone in a calorie deficit, and people doing resistance training. The practical target ranges cluster around 1.2 to 1.6 grams per kilogram of body weight for those groups — achievable from ordinary food, which is the sentence the fortified aisle least wants printed.
Who funded it
A large share of protein-timing and supplement studies are industry-adjacent, and the effects that survive independent meta-analysis are modest: total daily intake matters, the fabled post-workout window is wide, and powder is a convenience, not a requirement.
The numbers a reader can feel
The premium is the story: per gram of protein, fortified snack products routinely cost several times more than eggs, dairy, legumes or tinned fish. The satiety benefit is real — protein-rich meals keep people fuller — which is precisely why the marketing works on genuinely hungry people buying at 6 p.m.
What happens next
Expect the halo to keep spreading — protein pasta, protein soda — until the inevitable fibre rediscovery, whose deficiency statistics are, by any honest reading, far worse. The unfashionable summary: most people reading this are closer to their protein target than their fibre one, and the aisle knows which gap sells.