Insights & Discussion
The Mediterranean diet, especially the high consumption of extra-virgin olive oil, significantly reduces the risks of vascular diseases and Alzheimer's.
The research has been based on a plethora of observational epidemiological studies, local population experiences, meta-analyses of epidemiologic data, and experimental studies, all converging to the connection between the Mediterranean diet and a reduced prevalence of different ailments. The study scopes extend over long periods, such as the Italian-American experience from 1935 to 1965, or the Seven Countries Study spanning four decades from 1960 to 2000. Another significant evidence base is the French Three-City Study, which followed participants for ten years from 2000 to 2010. Apart from human trials, the article includes results from experimental animal models, specifically concerning late-onset Alzheimer disease.
The findings showcase a consistent trend linking reduction in vascular diseases, obesity, arthritis, cancer, cognitive decline, and specifically Alzheimer's disease with increased adherence to a Mediterranean dietary pattern, particularly high intake of extra-virgin olive oil. Certain dietary components such as fruits, seeds, legumes, and vegetables contribute to the benefits. However, olive oil stands out as the chief dietary fat in Mediterranean countries. It provides plentiful monounsaturated fatty acids, beneficial polyphenols, and other antioxidants, which play a crucial part in these health benefits. The most striking discovery is extra-virgin olive oil's potential to mitigate the effects of adverse vascular factors, indicating a promising approach to preventing late-onset Alzheimer's disease.
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Nutrition, particularly an anti-inflammatory Mediterranean diet supplemented with oily fish and omega-3 supplements, can potentially reduce inflammation and improve symptoms of rheumatoid arthritis.
2023 Autoimmunity Reviews Nutrition and its role in prevention and management of rheumatoid arthritis Nikiphorou E, Philippou E
Review Article Mediterranean Diet Omega-3 Fatty Acids
The review examines evidence indicating a possible connection between nutrition and the risk and management of rheumatoid arthritis, an autoimmune disease having an immune-inflammatory response. The impact of different food types was considered, including pro-inflammatory and anti-inflammatory foods. Specifically, the research highlights the effectiveness of a Mediterranean diet, rich in fish and supplemented with omega-3 polyunsaturated fatty acids, in reducing inflammation and oxidation. Other factors such as herbs and spices, beverages, vitamin D, and probiotics were also taken into account. The research emphasizes the direct and indirect role of nutrition through the management of co-morbidity.
The disease activity was observed to improve with dietary changes, particularly a propensity to reduce inflammation, oxidation, and beneficial effects on gut microbiota. An anti-inflammatory Mediterranean diet, supplemented with consumption of oily fish at least twice a week, and daily intake of omega-3 polyunsaturated fatty acid supplements of 2 g, has been recommended. The study also highlights the importance of rheumatologists working closely with registered dietitians to support patients in managing a well-balanced diet according to their individual needs.
The Mediterranean diet and reduced intake of trans fatty acids, saturated fatty acids, and discretionary foods like fast food and sugar-sweetened beverages may improve fertility rates.
2023 Human Reproduction Update Assessing the influence of preconception diet on female fertility: a systematic scoping review of observational studies Alesi S, Habibi N, Silva TR, Cheung N, Torkel S, Tay CT, et al.
Review Article Mediterranean Diet Saturated Fats Trans Fats
This title represents a systematic scoping review of four electronic databases, namely Medline and EMBASE via Ovid Processing, CAB Direct, and CINAHL via EBSCO. The researchers included observational works, consisting of prospective and retrospective cohort, cross-sectional, and case-control studies, up to September 27, 2021. The criteria for study inclusion were women of reproductive age in the preconception stage who were examined for the connection between preconception diet and fertility outcomes.
From the total of 36 studies that were found eligible for review, the one diet that stood out with the most significant and consistent association with increased clinical pregnancy rates was the Mediterranean diet. Dietary factors such as reducing trans fatty acids, saturated fatty acids, and discretionary food intake, which includes fast food and sugar-rich drinks, were found to lead to an improvement in live birth, clinical pregnancy rates, and associated ART outcomes. However, this study also found that elements like seafood, dairy, and soy showed varying findings across a few studies. Despite the mixed results, it was noted that following some of these dietary regulations, notably Mediterranean diet, shows consistency with healthy eating guidelines, implying potential benefits in fertility.
Magnesium, essential for harmonising nerve signals and preserving the blood-brain barrier, may be linked to neurodegenerative disorders when its balance is disrupted.
2022 International Journal of Molecular Sciences Magnesium and the Brain: A Focus on Neuroinflammation and Neurodegeneration Maier JAM, Locatelli L, Fedele G, Cazzaniga A, Mazur A
Review Article Alzheimer's Disease Magnesium Multiple Sclerosis
The researchers performed a narrative review, beginning with a quick overview of the role of magnesium in the brain. Magnesium is crucial for healthy nerve signal transmission and the upkeep of the blood-brain barrier, which protects the brain from harmful substances in the blood. Then, they discussed evidence suggesting a connection between disrupted magnesium balance and a variety of neurodegenerative disorders.
In the discussion of the results, it was posited that a deficiency in magnesium might contribute to low-grade systemic inflammation, which is common in many illnesses. Specifically, they argued that such inflammation in the brain is a characteristic feature of neurodegenerative diseases. The review found evidence that disruptions in the body's magnesium balance could be associated with multiple sclerosis, Alzheimer's, and Parkinson's diseases.
Coconut water possesses unique compound profiles that imbue it with a broad spectrum of medical properties, incorporating aspects of nutrition, pharmacology, and disease prevention.
2022 Reference Series in Phytochemistry Health Benefits of Coconut Water Rethinam P, Krishnakumar V
Review Article Alzheimer's Disease
The study utilized comprehensive analysis to assess the chemical profile of coconut water, identifying a range of components including phytohormones, enzymes, antioxidant compounds, vitamins, minerals, and phenolic compounds. These components are known to contribute to the water's biological activity and pharmacological effects, thereby enabling a raft of medicinal properties inherent to coconut water. The water was found to feature anti-microbial, anti-bacterial, anti-inflammatory, anti-hypertensive, rejuvenating, hepatoprotective, hypolipidemic, and diuretic properties.
An examination of the therapeutic effects of coconut water revealed a significant impact on gastric dysfunction, dysentery, and child malnutrition alongside notable capabilities to manage hypertension. The water was found to promote exercise performance, reduce swelling, dissolve kidney stones, improve kidney function, improve digestion, relieve constipation, reduce the risk of heart disease, lower high blood pressure, and improve cholesterol levels. Consumption of tender coconut water was specifically found to reduce the risk of heart disease, help prevent Alzheimer’s disease pathologies and prevent osteoporosis in experimental animals. The unique nutritional profile of coconut water was also found to provide it with the capacity to balance body chemistry and fight cancer.
The existing evidence, although with low level of confidence, suggests that walnut intake may have a beneficial effect on cognition-related outcomes, including cognitive function, mood, and stroke.
2021 Annals of Medicine Walnut intake, cognitive outcomes and risk factors: a systematic review and meta-analysis Cahoon, D., Shertukde, S. P., Avendano, E. E., et al.
Systematic Review Alzheimer's Disease Dementia Stroke
The existing evidence, although with low level of confidence, suggests that walnut intake may have a beneficial effect on cognition-related outcomes, including cognitive function, mood, and stroke. Limitations in study design and comparability render the available evidence insufficient to draw a firm conclusion regarding the effects of walnut on cognition in adults. High quality studies and standardized interventions and measurement tools are necessary to determine the role of walnut intake in cognitive health.
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