Around 982,000 people in the UK are currently living with dementia, and Alzheimer's disease accounts for more than 60% of cases. While there is no known cure, a groundbreaking study has identified a cheap, over-the-counter daily fibre tablet that could enhance brain function in older adults within just a few weeks.
Researchers believe there is a significant connection between gut health and brain function, and that this simple supplement could play a vital role in the battle against Alzheimer's disease.
Study Findings on Cognitive Performance
During the study, scientists assigned 36 twin pairs aged over 60 to receive either a placebo or the supplement daily for 12 weeks. This phase of the trial was entirely 'double-blind', meaning neither the researchers nor the participants were aware of who received which treatment until the study was concluded.
All 72 individuals also participated in resistance exercises and consumed protein supplements to support muscle function. The results revealed that participants who took the fibre tablets performed better in cognitive tests, such as the Paired Associates Learning test, which is widely regarded as an 'early marker for Alzheimer's disease'.
Improved Reaction Times and Processing Speeds
While there was no notable difference in muscle strength between the two groups, those who consumed fibre also demonstrated faster reaction times and improved processing speeds.
Senior author Professor Claire Steves, of King's College London, stated in March 2024: "We are excited to see these changes in just 12 weeks. This holds huge promise for enhancing brain health and memory in our ageing population. Unlocking the secrets of the gut-brain axis could offer new approaches for living more healthily for longer."
Next Steps for the Research
Professor Steves and her team are 'excited' by the discoveries, which could offer a ray of hope. "These plant fibres, which are cheap and available over the counter, could benefit a wide group of people in these cash-strapped times," Professor Steves continued.
"They are safe and acceptable too. Our next task is to see whether these effects are sustained over longer periods and in larger groups of people."
