Following a nutrient-dense eating plan, such as the Mediterranean diet, in early adulthood may help prevent mental decline decades later.
A new study published in the online journal Neurology found that consuming a diet comprised primarily of fruits, vegetables, fatty fish and nuts is associated with better cognition in middle age.
Individuals who eat a MedDiet have been shown to accumulate less beta-amyloid, a protein associated with Alzheimer’s disease and dementia, compared to those eating a typical Western Diet.- Brian Bender, certified nutritionist and biomedical engineer
“Our findings indicate that maintaining good dietary practices throughout adulthood can help to preserve brain health at midlife” said study author Claire T McEvoy of Queen’s University Belfast in Northern Ireland.
Participants consisted of 2,621 adults with an average age of 25 at the study’s onset. They provided information about their diet at the beginning of the investigation, as well as seven and 20 years later. Their cognition was tested twice: once at age 50 and again at age 55.
See Also:Olive Oil Health NewsFor each diet, the participants were assigned to low‑, medium- or high-adherence groups, depending on how closely their food intake resembled three heart-healthy eating plans. These included the Mediterranean diet (MedDiet), the Dietary Approaches to Stop Hypertension (DASH) diet, and the A Priori Diet Quality Score [APDQS] diet:
Results showed an association with preservation of cognition with the MedDiet and the APDQS diet. Participants with high adherence to the MedDiet had a 46 percent lower likelihood of poor thinking skills than those with low adherence.
Those with high adherence to the APDQS diet showed a 52 percent decreased risk of poor thinking skills compared to those with low adherence. Large differences were seen in fruit and vegetable consumption between the high- and low-adherence groups. The findings were adjusted for factors that can influence cognition such as smoking, level of education and physical activity.
It was not clear why the DASH diet was not tied to a cognitive advantage, but McEvoy speculated one factor might be alcohol.
“One possibility is that DASH does not consider moderate alcohol intake as part of the dietary pattern, whereas the other two diets do,” McEvoy said. “It’s possible that moderate alcohol consumption as part of a healthy diet could be important for brain health in middle age, but further research is needed to confirm these findings.”
Additional studies are needed to identify exact combinations of foods and nutrients that promote optimal cognitive health throughout life. In the meantime, McEvoy recommends following the MedDiet or APDQS diet to protect against mental decline.
“While we don’t yet know the ideal dietary pattern for brain health, changing to a heart-healthy diet could be a relatively easy and effective way to reduce the risk for developing problems with thinking and memory as we age,” she said.
Brian Bender, a certified nutritionist, biomedical engineer and a cofounder of Intake, told Olive Oil Times how heart-healthy diets, such as the MedDiet, may protect against mental decline.
“Individuals who eat a MedDiet have been shown to accumulate less beta-amyloid, a protein associated with Alzheimer’s disease and dementia, compared to those eating a typical Western Diet,” he said. “One theory for how a MedDiet may do this relates to a protein called ApoE, which typically binds to beta-amyloid and shuttles it out of the brain.”
“However, individuals who eat a Western Diet produce less ApoE compared to those on a MedDiet,” he added. “Thus, the high intake of fruits, vegetables and legumes, along with healthy fat from olive oil, nuts and oily fish appear to help the brain ward off beta-amyloid buildup that is associated with cognitive decline.”
More articles on: health, Mediterranean diet, olive oil health
Oct. 7, 2024
Extra Virgin Olive Oil Extract Exceeds Ibuprofen's Anti-Inflammatory Properties
A new method to sustainably draw oleocanthal and oleacein from extra virgin olive oil obtains an extract with powerful antioxidant properties.
Apr. 23, 2024
Study Reveals Therapeutic Properties of EVOO Polyphenols on Childhood Cancer
Researchers examined oleuropein and hydroxytyrosol for their potential in treating neuroblastoma, a formidable childhood cancer.
Oct. 26, 2023
Research Shows the Role of Polyphenols in Inhibiting Cancer Metastasis
Spanish scientists investigated the role of oleocanthal and oleacein in modulating angiogenesis, which is directly related to the progression of different types of tumors.
Oct. 3, 2024
Can Olive Oil Really Prevent a Hangover? An Expert Weighs In
While olive oil will not mitigate the negative consequences of drinking too much, no harm can come from consuming it before a night out.
May. 23, 2024
First OlivitalyMed Festival Hailed as Success in Cilento
The event, which spotlighted extra virgin olive oil in Campania and Italy, also hosted conferences on cooking, health, tourism and science.
Jan. 15, 2024
Oleocanthal: Behind the Health Benefits of Olive Oil's Famous Phenol
Found solely in extra virgin olive oil, oleocanthal demonstrates potent anti-inflammatory properties and has been linked to beneficial impacts on cancer and dementia.
Nov. 27, 2023
Mediterranean Diet Helps Slow Age-Related Physical Decline, Study Finds
New research has shown that following a reduced-calorie Mediterranean diet and increasing physical activity slows age-associated muscle loss and reduces total and visceral fat.
Dec. 5, 2023
An Olive Oil-Centered Curriculum in California Seeks to Help an Ailing County
Despite its agricultural mite, Kern County suffers from elevated levels of food insecurity, obesity and diabetes compared to the rest of the state.