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29.08.2023

After 60, a high intake of vitamin E maintains cognitive abilities

According to a Chinese-American epidemiological study, people over sixty who consume a relatively high amount of vitamin E halve their risk of mental decline compared to peers with relatively little vitamin E in their diet.

Study
Epidemiologists from Jilin University in China analyzed data from 2,255 Americans over the age of 60, all of whom participated in the National Health and Nutrition Examination Survey (NHANES) in 2011-2014.

Researchers had measured the study participants' mental abilities with standard tests. The study participants had also kept track of what they ate for several days. Based on this, the researchers calculated how much vitamin E they had consumed. According to the European authority EFSA, adults need an average of 12 milligrams of vitamin E every day. [EFSA Journal 2015;13(7):4149.]

15 percent of the participants consumed more than 12 milligrams of vitamin E per day. The other 85 percent consumed less than 12 milligrams.

Vitamin E is present in sunflower oil, whole grain products, nuts, seeds, vegetables and fruit. There are different forms of vitamin E, of which the tocopherols are the most important. Vitamin E variants are mainly active in the body as an antioxidant.

Results
The researchers divided the study participants into 4 equally sized groups based on their vitamin E intake. The group with the highest intake (about 10 milligrams of vitamin E per day or more) was 53 percent less likely to have poor cognitive scores than the group with the lowest lowest intake of vitamin E (about 5 milligrams or less).

The researchers created the figure below after adjusting their figures for factors such as age, race, gender, income, education, BMI, coronary disease, hypertension, smoking, alcohol, and diabetes.

Every milligram of vitamin E that the study participants consumed on a daily basis reduced the chance of serious cognitive decline by 6 percent.

Conclusion
"These findings highlight the importance of including vitamin E-rich foods in the diet, particularly for older adults who may be at a higher risk of cognitive impairment," the researchers write.

Source:
Eur Geriatr Med (2023). https://doi.org/10.1007/s41999-023-00814-w

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