UCL research published in BMC Medicine and funded by Cancer Research UK estimates 1.6 million UK adults, 2.9% of survey participants, used weight loss drugs in the past year, mostly Mounjaro, with use twice as common among women and higher among people aged 45 to 55 and those reporting psychological distress. Another 3.3 million people said they would be interested in using the drugs, which Professor Sarah Jackson says far exceeds the NHS's initial goal of prescribing them to 220,000 people over three years.