tweaking

After a few rounds of tweaking, the annual cap on new applications was set at 85,000, including 20,000 holders of advanced degrees from U.S. universities.

But Prof Waters said it was "not a new system", and was instead a "cosmetic rebranding, tweaking and expansion of the same unreliable and punishing system as the one before".

"Over time, this can chip away at self-esteem, making people feel inadequate unless they're constantly tweaking or reshaping themselves."

For Sargento, it took a full decade of R&D. Ten years of trying, tweaking and trying again.

Ministers say it will be up to food retailers to decide how they do that, but it could involve offering promotions on healthy food, tweaking loyalty points to incentivise healthy options, or changing shop layouts.