Six Key Nutrients Linked to Sharper Thinking in Older Adults
Graded Preliminary — a one-time survey of 2,713 older adults; it shows only a link, and diet data rely on memory of a single day.
- Design
- Cross-sectional study
- Participants
- 2,713
- Duration
- —
- Funding
- The authors state they had no funding.
Older adults who ate enough of six antioxidant nutrients were clearly less often impaired on thinking tests.
Older adults who got enough of six particular nutrients were less likely to score poorly on thinking tests. The six are vitamins A, C and E plus zinc, selenium and magnesium, all counted as antioxidants. The question matters: by 2050, more than 150 million people worldwide are projected to live with dementia.
Researchers used data from a US national health survey run from 2011 to 2014. It included 2,713 people aged 60 and older, who reported everything they had eaten in the previous 24 hours. Each nutrient earned one point if intake reached at least two thirds of the recommended amount. People scoring 5 or 6 points were clearly less often cognitively impaired than those scoring 0 to 2. This held after accounting for age and other factors. Above 5 points, no further advantage appeared. The link was stronger in women and in people without diabetes.
The survey captured a single moment in time. It cannot tell whether diet protects thinking or whether sharper people simply eat differently. The food reports also relied on people's memory.
Conflict of Interest Disclosure: The authors report no funding or conflicts of interest.
Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.
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