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London, Sep 3 Eating right and healthy in your early years can help boost health in old age, suggests a study conducted in yeast. Yeast are good model organisms for studying ageing as they share many of the same cellular machinery as animals and humans.According to researchers at the Babraham Institute in UK, healthy ageing is achievable through dietary change without restriction by potentially optimising diet, and that ill-health is not an inevitable part of the ageing process.Scientists have long known that caloric restriction -- intentionally consuming far less calories than normal without becoming malnourished -- improves health in later life and may even extend life.However, studies in mice show that caloric restriction really needs to be maintained throughout life to achieve this impact, and the health benefits disappear when a normal diet is resumed.The new research, published in the journal PLOS Biology, conducted in yeast suggests an alternative to calorie restriction can lead to improved health through the lifecycle.“We show that diet in early life can switch yeast onto a healthier trajectory.Rather than growing yeast on their usual glucose-rich diet, the researchers swapped their diet to galactose and observed that many molecular changes which normally accompany ageing did not occur.The cells grown on galactose remained just as fit as young cells even late in life, despite not living any longer, showing that the period of ill-health towards the end of life was dramatically reduced.“Crucially, the dietary change only works when cells are young, and actually diet makes little difference in old yeast. It is hard to translate what youth means between yeast and humans, but all these studies point to the same trend - to live a long and healthy life, a healthy diet from an early age makes a difference,” explained Dr Jon Houseley, from the Institute.The avenue of research in yeast helps us to seek a more achievable way to improve healthy ageing through diet compared to sustained and severe calorie restriction, although more research is needed.Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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