30/08/2026
Protein is having a bit of an identity crisis online.
One day, we’re told to eat more.
The next, we’re told eating less may help us live longer.
But the science is more nuanced than the headline.
Much of the longevity evidence comes from animal and laboratory models. In humans, some short-term studies have shown changes in insulin sensitivity, glucose metabolism and related biological pathways, but we still do not know whether eating less protein helps humans live longer.
So the takeaway isn’t “more protein” or “less protein.”
It is: How much protein does this person actually need?
Age, activity, muscle health, illness, recovery and stage of life all matter.
Don’t turn interesting science into a universal diet rule.
Question the headline. Understand the evidence. Personalise the advice.
Qualifications matter. Evidence matters. Your health matters.