Preserving brain health becomes increasingly important as we age. Now, emerging research suggests a simple dietary shift could make a big difference: increasing your intake of magnesium-rich foods like spinach, nuts, and whole grains.
A new study from the Neuroimaging and Brain Lab at The Australian National University (ANU) found that people who consume higher levels of magnesium each day may experience slower brain aging and a reduced risk of neurodegenerative diseases like dementia.
Magnesium: A Brain Booster?
In an extensive study involving over 6,000 cognitively healthy adults aged 40 to 73 in the UK, researchers discovered that individuals consuming more than 550 mg of magnesium daily had a brain age nearly one year younger by the time they reached 55, compared to those consuming a more typical 350 mg per day.
Lead researcher Khawlah Alateeq explains:
“Our study shows a 41 percent increase in magnesium intake could lead to less age-related brain shrinkage, which is associated with better cognitive function and a lower risk or delayed onset of dementia in later life.”
Why This Matters
Dementia is currently the second leading cause of death in Australia and ranks as the seventh biggest cause of death globally. With no effective cure and decades of pharmaceutical disappointments, prevention is more important than ever.
“Since there is no cure for dementia and the development of pharmacological treatments have been unsuccessful for the past 30 years, it’s been suggested that greater attention should be directed towards prevention,” said Dr. Erin Walsh, co-author of the study.
This research strengthens the case for preventive strategies that begin not in old age, but potentially decades earlier.
Start Younger, Stay Sharper
According to the findings, boosting magnesium intake from a younger age—possibly as early as your 40s—may offer long-term neuroprotection and delay cognitive decline.
“This means people of all ages should be paying closer attention to their magnesium intake,” said Alateeq.
Notable Gender Differences
Interestingly, the study also found that women, particularly postmenopausal women, seemed to benefit more from magnesium’s neuroprotective effects. This may be due to magnesium’s known anti-inflammatory properties, which can help reduce chronic inflammation, a key factor in cognitive aging.
Takeaway: Add More Magnesium to Your Plate
Magnesium-rich foods include leafy greens like spinach, legumes, nuts, seeds, and whole grains. These foods not only support your heart, muscles, and bones, but as this study shows, they may also help keep your mind sharp as you age.
Regarding brain health, prevention is key, and your diet is a powerful place to start.
As for supplementation, some nutritionists recommend 250 mg in the morning and 250 mg one hour before bed. According to some experts, the referred forms of magnesium seem to be Threonate and Glycinate.
