At the start of 2025, about 3% of adults in UK had used GLP-1 drugs in past year in the UK. And "most GLP-1 for weight loss in the UK is from private, rather than NHS provision" [1].
For another example, rates of COVID-19 vaccination are significantly lower in the UK not because people there don’t want vaccines, but because the NHS only makes them narrowly available to people above a certain age or with a strict set of conditions.