Insights & Discussion
The consumption of avocado is associated with better cognitive function in older adults.
In the methodology, the researchers conducted a cross-sectional study involving 2,886 participants aged 60 or older from the National Health and Nutrition Examination Survey 2011–2014. These participants were classified into two groups: those who consumed avocado or guacamole, and those who did not. Cognitive performance was evaluated using tests for immediate and delayed recall, the Animal Fluency test, and the Digit Symbol Substitution Test, with education-dependent z-scores calculated for each participant as the education level can impact cognitive function. To control for potential influencing factors, comparisons were made between consumers and non-consumers with independent sample t-tests and advanced statistical methods like ANCOVA.
The study found that those who consumed avocado showed significantly better scores across every cognitive test and the global cognitive score compared to non-consumers. Even after adjustments for potential confounders, the positive differences persisted. These findings support the conclusion that consumption of avocado correlates positively with improved cognitive function amongst elderly adults.
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Consumption of unripe avocado extract in the diet may lower postprandial insulin levels in overweight adults with previously elevated insulin levels.
2023 Nutrients Effects of an Unripe Avocado Extract on Glycaemic Control in Individuals with Obesity: A Double-Blinded, Parallel, Randomised Clinical Trial Zhao L, Ingram DK, Gumpricht E, De Paoli T, Teong XT, Liu B, et al.
Randomised Controlled Trial Avocado Glucose
In this study, a double-blinded, randomised controlled trial was performed on 60 non-diabetic adults (with a majority of 47 being women, average age 48 years, BMI 34.0 kg/m). The participants were stratified by sex and randomised into two groups. One group daily consumed an extract from unripe avocado (10 g finely ground, freeze-dried unripe avocado), while the other took a placebo (10 g finely ground cornmeal supplemented with 5% spinach powder) over a period of 12 weeks. The primary outcome measured was the change in glucose area under the curve (AUC) in response to a 75 g oral glucose tolerance test.
The results showed no significant differences between both groups in terms of glucose AUC, insulin AUC, or cardiovascular outcomes. However, in a subgroup analysis focusing on participants with above median baseline postprandial insulin levels, there was a notable reduction in insulin AUC in those who consumed the avocado extract compared to the placebo. This suggests that the daily consumption of an unripe avocado extract, enriched in MH, might not significantly impact glucose tolerance or insulin sensitivity in obese non-diabetic adults. Nonetheless, there seems to be a potential benefit of this intervention on postprandial insulin levels in individuals with initially elevated insulin responses.
Bioactive compounds found in avocado waste products exhibit various biological properties, with potential applications in the food and pharmaceutical industries.
2020 Food Reviews International Pulp, Leaf, Peel and Seed of Avocado Fruit: A Review of Bioactive Compounds and Healthy Benefits Jimenez P, Garcia P, Quitral V, Vasquez K, Parra-Ruiz C, Reyes-Farias M, et al.
Review Article Anti-Inflammatory Anticancer Antimicrobial
In this study, we delved into the archived scientific research concerning bioactive compounds and their sources, particularly focusing on avocado waste products such as leaves, peels, and seeds. We identified the primary compounds found in these parts to include carotenoids, tocopherols, phytosterols and a group of natural organic structures known as polyphenols.
In the results discussion, we found that the compounds discovered in avocado waste products have credible biological activities that have distinct health implications. The wastes extracts demonstrated antimicrobial properties, along with anti-inflammatory characteristics. Additionally, they showed potential anticancer, antidiabetic and antihypertensive capabilities. These findings infer that the bioactive compounds from avocado wastes may be successfully used in the food and pharmaceutical industries.
Avocado's nutritional and therapeutic properties show potential for novel drug discovery in prevention and treatment of prevalent diseases such as cancer, diabetes, and cardiovascular issues.
2019 Antioxidants The Odyssey of Bioactive Compounds in Avocado (Persea americana) and their Health Benefits Bhuyan , Alsherbiny , Perera , Low , Basu , Devi , et al.
Review Article Anti-Diabetic Anti-Inflammatory Anticancer
The methodology utilized in this review was an extensive summary and assessment of research conducted in recent decades with emphasis on avocado's nutritional and therapeutic properties, along with its unique biochemical profile. Special focus was given to the major metabolites of avocado, their antioxidant properties, as well as their bioavailability and pharmacokinetic features.
The discussion of results involved highlighting the potential of avocado in novel drug discovery for the prevention and treatment of a variety of diseases like cancer, microbial, inflammatory, diabetes, and cardiovascular diseases. Emanating from the unique bioactive compounds and antioxidant contents of avocado, it’s clear that the fruit has much more to offer in terms of medicinal value than is currently explored today.
Avocado, with its lipid-lowering, antihypertensive, antidiabetic, anti-obesity, and cardioprotective effects, can potentially manage metabolic syndrome more efficaciously than synthetic treatment options.
2017 Phytotherapy Research Effects of Avocado (Persea americana)on Metabolic Syndrome: A Comprehensive Systematic Review Tabeshpour J, Razavi BM, Hosseinzadeh H
Systematic Review Avocado Cardiovascular Disease High Blood Pressure
The methodology used in this research involved a systematic review of several studies investigating the pharmacological effects of avocado on different components of metabolic syndrome. This included studies on the lipid-lowering, antihypertensive, antidiabetic, anti-obesity, antithrombotic, antiatherosclerotic, and cardioprotective effects of avocado. Further, the review also encompassed researches based on the effects of avocado's various parts like the flesh, seed, peel, and leaves in metabolic syndrome.
Upon evaluation of collected studies, the researchers found that the avocado, a rich source of carotenoids, minerals, phenolics, vitamins, and fatty acids, demonstrates strong potential in managing metabolic syndrome. Its antidiabetic, antihypertensive, anti-obesity, lipid-lowering, and cardioprotective properties specifically align with the key risk factors of metabolic disease, including high blood sugar, dyslipidemia, hypertension, and obesity. These qualities suggest that avocado might present a more efficient and less adverse alternative to synthetic treatments.
A dietary supplement Avocado/Soybean Unsaponifiables aids in treating Osteoarthritis by preventing cartilage degradation and promoting cartilage repair, thereby reducing pain and enhancing joint functionality.
2014 CARTILAGE Management of Osteoarthritis with Avocado/Soybean Unsaponifiables Christiansen BA, Bhatti S, Goudarzi R, Emami S
Review Article Articular Cartilage Avocado Avocado-Soybean Unsaponifiables
Avocado/Soybean Unsaponifiables was studied for its effects on Osteoarthritis. The methodology highlighted its functions, which include inhibiting the release and activity of molecules and pathways that are implicated in OA, as well as those that prevent cartilage degradation. These functions are principally through the prohibition of matrix metalloproteinases and the increase of tissue inhibitors of the catabolic enzymes in question. Additionally, ASU was found to inhibit fibrinolysis by stimulating the expression of plasminogen activator inhibitor. Moreover, its anabolic properties were credited with promoting cartilage repair by stimulating collagen and aggrecan synthesis while inhibiting inflammatory cytokines.
ASU's chondroprotective effects were noted as well; these effects are brought about by correcting growth factor abnormalities, and by simultaneously increasing Transforming Growth Factor-Beta in synovial fluid while decreasing vascular endothelial growth factor. Additionally, it was observed to inhibit cholesterol absorption and biosynthesis, which further contribute to its beneficial role by moderating reactive oxygen species pathology in chondrocytes.
Results indicated that the dietary supplement has significant therapeutic value for those suffering from Osteoarthritis. It reduces pain and stiffness while improving joint function, resulting in less dependency on painkillers. It was found that ASU's preventative measures towards cartilage degradation and its promotion of cartilage repair play essential roles in its efficiency as a treatment for OA.
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