I think there are some health related BTECS but to get the distinctions needed by uni's students have to work to a high standard and show good understanding. If your students are motivated this should'' be a problem but having had both my own children complete level 3 diplomas I can tell you they are not an easier option! Different skills needed though and many uni's accept them, even Russel group, especially if the have an A level as well. I know Exeter, Bath, Loughborough (with 1 A level), Leeds (with 1 A level) all accept Level 3 diplomas as do UWE, Oxford Brookes, Bath Spa but only at distinction or distinction*. I also know Nottingham and Bristol vet schools were starting to take a handful of students with science Btec + chem A level on vet courses (report about 3 years ago saying these students came with better study skills and a sound understanding of science).