Nikki Laine has been taking the weight-loss drug Mounjaro for just over three weeks and has described it as "life-changing" after losing 1st st and 2lb (7.6kg). Mounjaro – also known as Tirzepatide – is an injectable prescription which contributes to weight loss when taken alongside a healthy diet and regular exercise.

The weight-loss drug boom has transformed Eli Lilly (LLY), the maker of Zepbound, into the largest healthcare company in the world. Now, the pharma giant wants to reinvest its success with weight-loss meds into tackling some of the world’s toughest health challenges.