The research, published in Nature Medicine on 9 March1, reveals that taking a daily supplement for two years slowed biological ageing in older adults by around four months, compared with those who didn't take them. The aim of studies like this is 'not just identifying how to live longer, but also how to live better', says study co-author Howard Sesso, an epidemiologist at Brigham and Women's Hospital in Boston, Massachusetts. Although it's too early to link the data to clinical outcomes, 'the multivitamin intervention appeared to be on that type of trajectory over two years,' he says. 'This is a very interesting and rigorous study,' says Steve Horvath, a geroscientist at biotechnology company Altos Labs in Cambridge, UK. 'The public appetite for knowing whether everyday supplements can genuinely slow ageing is enormous. This study provides some of the most credible evidence we have to date.' Sesso and his colleagues analysed blood samples from 958 healthy participants in the COSMOS...
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