Insights & Discussion
Coffee extract supplementation significantly improves parameters of metabolic syndrome, with the effects varying according to the types and doses of coffee administered.
In this systematic review and meta-analysis, the researchers sourced relevant articles from PubMed and Scopus published between 2015 and 2020. The investigation focused on randomised controlled trials that studied the impact of coffee consumption on factors like body measurements, blood sugar indices, lipid profiles, and blood pressure. Effects of green coffee extract (GCE) supplementation and decaffeinated coffee were analysed in the study.
Following a meticulous extraction and analysis of data from the relevant studies, the researchers found significant improvements in parameters of metabolic syndrome upon supplementation with GCE and decaffeinated coffee. The GCE supplementation, ranging from 180 to 376 mg, was found to reduce waist circumference, triglyceride levels, systolic and diastolic blood pressure while increasing high-density lipoprotein-cholesterol levels. The intake of decaffeinated coffee reduced fasting blood glucose levels. The analysis revealed improvements in metabolic syndrome outcomes for participants consuming GCE and liquid decaffeinated coffee.
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Moderate coffee consumption may potentially reduce the risk of low HDL-C and high fasting blood glucose amongst Korean male adults.
2021 Nutrients Association of Coffee Consumption and Its Types According to Addition of Sugar and Creamer with Metabolic Syndrome Incidence in a Korean Population from the Health Examinees (HEXA) Study Tan LJ, Jeon HJ, Park SH, Kim SA, Lim K, Chung S, et al.
Cohort Study Blood Sugar Coffee HDL-C
The study was designed to evaluate the link between coffee intake and the onset of metabolic syndrome, utilizing participant data sourced from the Health Examinees study. Metabolic Syndrome was identified based on the criteria set by the Adult Treatment Panel III of the National Cholesterol Education Program. The researchers deployed a multivariate Cox proportional hazards regression model to examine the relationship between different levels of coffee consumption and the incidence of metabolic syndrome.
In the analysis of the results, moderate coffee consumption, approximately 1-3 cups per day, in male participants was found to have an inverse correlation with low high-density lipoprotein cholesterol (HDL-C) and high fasting blood glucose. More so, this inverse correlation was further observed with the consumption of 3-in-1 coffee, which includes sugar and creamer. This suggests that male habitual coffee drinkers may be less likely to experience low HDL-C and high fasting blood glucose, key markers of metabolic syndrome.
Tea and coffee possess health promoting properties and can effectively prevent and treat metabolic disorders, including obesity, through the suppression of fat storage.
2021 Physiological Research The anti-obesity and health-promoting effects of tea and coffee Sirotkin AV, Kolesarova A
Review Article Coffee Health Benefits Obesity
The paper provides a detailed review of the origin, chemical composition and properties of tea and coffee, including the health benefits associated with them. It specifically focuses on their impacts on fat storage and the potential physiological mechanisms behind their effects. The potential health effects of these plants are attributed, in part, to the presence of caffeine. Additional physiological and medicinal benefits could be linked to other molecules such as theaflavins, catechins, their metabolites and polyphenols found in tea and polyphenol chlorogenic acid in coffee.
In the discussion, the paper points out that both tea and coffee can be instrumental in preventing and treating a host of metabolic disorders including metabolic syndrome, cardiovascular diseases, type 2 diabetes and obesity. The mechanism these plants employ to bring about these health benefits is through the reduction of fat storage by suppressing adipocyte functions and supporting gut microbiota. Moreover, tea also exhibits an ability to prevent obesity by reducing appetite, food consumption and food absorption in the gastrointestinal system, as well as modifying the fat metabolism.