Researchers analysing UK Biobank health records have reported that Britons whose early life fell before the UK ended sugar rationing in September 1953 went on to have a lower risk of dementia than those born just after, when average sugar intake roughly doubled. The analysis, published in Neurology and covered separately in a related paper in npj Aging, used Britain's 1953 rationing cutoff as what the authors describe as a natural experiment, comparing health outcomes in around 65,000 UK Biobank participants born either side of the change. The Neurology paper reported a 23% lower dementia risk and a 28% lower Alzheimer's disease risk in the group exposed to rationing during their first 1,000 days of life, with cognitive decline beginning roughly 2.6 years later on average, according to reporting by the South China Morning Post and Smithsonian Magazine.
What the wider evidence shows
A related npj Aging analysis of the same cohort, led by researchers including Bing Zhang, reported a 46% lower Alzheimer's risk and smaller reductions in depression and anxiety diagnoses in the rationed group, alongside brain imaging differences including larger hippocampus volume. Both studies are observational and cannot prove that lower sugar exposure caused the difference; the authors note the comparison groups differed only in the years either side of a single policy change, which limits but does not remove the influence of other factors that shifted in Britain during the 1950s. No funding source was stated in the coverage reviewed.
What this means for you
This is a historical population comparison, not new advice for anyone currently pregnant or raising an infant, and the researchers say it does not rule out other factors that may affect dementia risk across life. For UK households more broadly, it is one more data point in a large and growing literature connecting diet quality across the lifespan to long-term brain health; readers can find how membership pricing works on the FAQs page.
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This article reports published news and research and is for information only. Food supplements are not a substitute for a varied diet or medical care, and no product mentioned is intended to diagnose, treat, cure or prevent any disease. Speak to your GP or pharmacist before changing what you take, especially if you are pregnant, breastfeeding, or taking prescribed medicines.