Insights & Discussion
Consumption of one avocado per day can potentially reduce visceral adiposity and subsequently decrease the risk of diabetes and cardiovascular disease.
The Habitual Diet and Avocado Trial was a multicenter, randomized, controlled study that evaluated the impact of daily avocado consumption over a period of six months. The experiment involved a large and diverse cohort. Participants were required to incorporate a daily avocado into their diet as a substitute for their regular dietary intake, notably those devoid of avocado consumption. Their progress was measured using magnetic resonance imaging (MRI) to ascertain the potential decrease in visceral adiposity, with individuals with increased waist circumference being the primary focus of the study. Additional measures such as hepatic lipid content, plasma lipid profiles, blood pressure and high sensitivity C-reactive protein were also part of the evaluation.
The study showed promising results in terms of weight control and reduction of visceral adiposity among participants. Initial results suggest that the sense of satiety post avocado consumption may subsequently lead to an overall decrease in energy intake. Moreover, the daily consumption of avocados was observed to not only reduce visceral fat but also display potential benefits impacting cardiometabolic disease risk. The benefits of avocado consumption were notably apparent among a cohort with an increased waist circumference, thus confirming the potential health benefits of avocados in weight management and risk reduction of obesity-related diseases.
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Extra virgin olive oil (EVOO) has beneficial health properties and can promote cardiovascular health, lipoprotein metabolism, and diabetes management in clinical nutrition.
2022 Nutrients Therapeutic Properties and Use of Extra Virgin Olive Oil in Clinical Nutrition: A Narrative Review and Literature Update Jiménez-Sánchez A, Martínez-Ortega AJ, Remón-Ruiz PJ, Piñar-Gutiérrez A, Pereira-Cunill JL, García-Luna PP
Review Article Cardiovascular Disease Type 2 Diabetes
The methodology of this narrative review involved an extensive synthesis and illustration of the various characteristics and clinical applications of EVOO and its components such as oleic acid, hydroxytyrosol, and oleuropein. It looked at their significance in diet therapy, use in oleic acid-based enteral and parenteral nutrition formulations, and oral supplementation formulations.
In their discussion of the results, the researchers found diverse health benefits associated with EVOO. Particularly, they highlighted the potential of whole EVOO in diet therapy and its minor components in supplementation to enhance cardiovascular health, control lipoprotein metabolism, and manage diabetes mellitus within a clinical nutrition framework. It was seen as a significant addition to nutritional and dietary strategies, with a potential for therapeutic application in several diseases and clinical demographics.
Almond-based diets may be effective in promoting short-chain fatty acid-producing bacteria and lowering glycated haemoglobin and body mass index in patients with type 2 diabetes compared with control.
2021 Nutrients The Effects of Almonds on Gut Microbiota, Glycometabolism, and Inflammatory Markers in Patients with Type 2 Diabetes: A Systematic Review and Meta-Analysis of Randomised Controlled Trials Ojo O, Wang XH, Ojo OO, Adegboye ARA
Systematic Review Almond Gut Microbiota HbA1C
The research was a systematic review and meta-analysis, conducted using the preferred reporting items for systematic review and meta-analysis methodology. Diverse databases, including the Health Sciences Research Databases via EBSCOhost, Google Scholar, EMBASE, and other article's reference lists, were thoroughly searched following the population, intervention, control, outcome, and study framework. The searches encompassed all relevant studies available from the inception of these databases until August 1, 2021.
Nine randomised studies were analysed, eight of which were used for the meta-analysis. Results revealed that diets rich in almonds foster the growth of gut bacteria that produce short-chain fatty acids. Additionally, the analysis demonstrated that such diets effectively reduce both glycated haemoglobin levels and body mass index in patients with type 2 diabetes. However, the effects of almonds were not significant concerning fasting blood glucose, 2-hour postprandial blood glucose, various inflammatory markers, and certain other indicators of diabetes. The biological mechanisms attributed to reductions in glycated haemoglobin and body mass index are thought to be related to the nutritional composition of almonds, namely their high fibre content and low glycaemic index.
The consumption of cocoa or dark chocolate can reduce low-density lipoprotein cholesterol and fasting blood sugar levels in diabetic patients.
2021 Phytotherapy Research The effect of cocoa/dark chocolate consumption on lipid profile, glycemia, and blood pressure in diabetic patients: A meta‐analysis of observational studies Darand M, Hajizadeh Oghaz M, Hadi A, Atefi M, Amani R
Systematic Review Blood Sugar Cocoa Dark Chocolate
A systematic search of databases identified eight randomized controlled trials (RCTs) with 433 participants for meta-analysis. The results demonstrated a substantial reduction in LDL-c levels (WMD: −15.49 mg/dl) and FBS concentrations (WMD: −6.88 mg/dl) following cocoa/dark chocolate consumption. The study emphasizes the potential positive effects of cocoa/dark chocolate on the metabolic profile of diabetic individuals.
The meta-analysis included RCTs focusing on cocoa/dark chocolate interventions in diabetic patients, with a significant pooled analysis showing reduced LDL-c and FBS levels. The findings suggest that incorporating cocoa/dark chocolate in the diet of diabetic individuals could be beneficial for managing lipid profile and glycemia. Further research is necessary to solidify these insights and understand the complete impact on metabolic health.
The supplementary intake of green tea does not significantly affect blood glucose, fasting insulin, hemoglobin A1c, and insulin resistance in patients with type 2 diabetes mellitus.
2021 Diabetes & Metabolic Syndrome: Clinical Research & Reviews Effect of green tea on glycemic control in patients with type 2 diabetes mellitus: A systematic review and meta-analysis Asbaghi O, Fouladvand F, Gonzalez MJ, Ashtary-Larky D, Choghakhori R, Abbasnezhad A
Systematic Review Green Tea Type 2 Diabetes
To examine the impact of green tea consumption on type 2 diabetes mellitus patients, a comprehensive search for relevant randomized controlled trials was conducted across multiple databases, including Web of Science, PubMed, and Scopus, without any language or time restrictions until June 2019. Both random and fixed effects models were utilized in the subsequent meta-analysis, with the I2 index employed to assess heterogeneity.
The initial search resulted in 780 relevant publications, from which 14 were selected for analysis. The evaluation revealed that additional intake of green tea had negligible influence on fasting plasma glucose, fasting insulin, hemoglobin A1c, and insulin resistance indicators in individuals affected by type 2 diabetes mellitus. This conclusion is drawn from a distinct pool of research without insisting further study or discussing numerical specifics and probabilities.
Coffee consumption may contribute to the prevention of several inflammatory diseases and types of cancer, with reduced mortality risk deemed safe up to 400mg of caffeine per day.
2021 Critical Reviews in Food Science and Nutrition Coffee consumption, health benefits and side effects: a narrative review and update for dietitians and nutritionists Barrea L, Pugliese G, Frias-Toral E, El Ghoch M, Castellucci B, Chapela SP, et al.
Review Article Metabolic Syndrome Obesity Type 2 Diabetes
The methodology used in this scholarly review was based on an extensive literature review using the PubMed/Medline database. As the primary research tool, this database facilitated the authors' collation and analysis of relevant studies concerning the impact of coffee consumption on health outcomes. The focus was to determine both the positive and negative aspects of coffee consumption, with an additional aim of providing dosage recommendations. The data collated from these studies was then summarised and analysed through a narrative approach, making the findings more digestible and interpretable.
The findings suggested that coffee consumption may play a significant role in preventing inflammatory and oxidative stress-related diseases such as obesity, metabolic syndrome and type 2 diabetes. In addition, findings indicated that coffee consumption also seemed to have an association with a lower incidence of several types of cancer and a reduction in the risk of all-cause mortality. However, notable is the need for a time gap between coffee consumption and the intake of some drugs to avoid potential interactions. It was also concluded that the consumption of up to 400mg/day of caffeine was generally found to be safe for the average person.
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