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Higher consumption of coffee and specifically decaffeinated coffee raises the risk of rheumatoid arthritis, while caffeinated coffee, tea and caffeine intake doesn't.
In the methodology, a dose-response meta-analysis of prospective cohort studies was carried out to evaluate the association between dietary caffeine, and different types of coffee and tea consumption with rheumatoid arthritis (RA). Relevant research papers were identified through a database search in PubMed/Medline, Scopus and EMBASE until July 2021. The studies considered different types of coffee, caffeinated or decaffeinated, tea or caffeine exposure with RA as the main or one of the outcomes. Out of 742 publications, five studies were selected for inclusion in the meta-analysis. Pooled relative risks were calculated through a fixed-effects model. Both linear and non-linear dose-response analyses were conducted to inspect dose-response relations.
The analysis of results revealed a significant association between the consumption of coffee, especially decaffeinated coffee and increased risk of RA, when comparing between extreme categories of consumption. For each additional cup of coffee consumed daily, there was a notable increase in the risk of RA. However, this study found no significant link between the intake of caffeinated coffee, tea or caffeine intake and the risk of RA.
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Heavy coffee consumption increases the risk of cardiovascular disease mortality in individuals with severe hypertension, while green tea consumption does not.
2023 Journal of the American Heart Association Coffee and Green Tea Consumption and Cardiovascular Disease Mortality Among People With and Without Hypertension Teramoto M, Yamagishi K, Muraki I, Tamakoshi A, Iso H
Cohort Study Coffee Green Tea High Blood Pressure
With the use of the Japan Collaborative Cohort Study, researchers assessed 18,609 participants, both male and female, aged between 40 to 79 years. These participants had varying blood pressure levels, categorized into optimal and normal BP, high-normal BP, and two stages of hypertension. They completed a questionnaire about their lifestyle, diet, and medical history, and underwent health examinations, which were followed up until 2009. The association of coffee and green tea consumption on cardiovascular disease mortality was then calculated using a Cox proportional hazard model.
It was found over an 18.9 year follow-up period that heavy coffee consumption was linked to increased risk of cardiovascular disease mortality among those suffering from the second to third grade of hypertension. In stark contrast, people with optimal and normal, high-normal blood pressure and first grade hypertension did not show such associations between coffee consumption and cardiovascular disease mortality. Interestingly, the risk of cardiovascular disease mortality was not found to be increased across any blood pressure categories in relation to green tea consumption.
Consumption of tea and coffee may possibly provide anti-inflammatory effects, contributing to reduced cardiovascular risk and mortality.
2023 Pharmacological Research Coffee or tea: Anti-inflammatory properties in the context of atherosclerotic cardiovascular disease prevention Surma S, Sahebkar A, Banach M
Review Article Anti-Inflammatory Cardiovascular Disease Coffee
The methodology of this narrative review examined the potential anti-inflammatory properties of consuming tea and coffee as a factor in reducing the risk of cardiovascular disease. This was done by analyzing a plethora of studies and meta-analyses that explored the impact of diet on inflammation, with a keen focus on the consumption of these beverages. The studies looked at a variety of risk factors for atherosclerotic cardiovascular disease, including inflammation biomarkers such as C-reactive protein, along with the impact of modern lipid-lowering treatments.
In discussing the results, it was noticed that inconsistent findings were produced from the analysed studies which made a conclusive determination challenging. However, a trend was observed where drinking tea and coffee seemed to raise adiponectin levels, reduce reactive oxygen species and lower low-density lipoprotein cholesterol levels. Despite these potential anti-inflammatory properties of tea and coffee being somewhat uncertain due to various confounding factors, their consumption is still recommended as part of a healthy diet.
Acupuncture shows promising results in managing autoimmune diseases by potentially regulating immune responses.
2022 The American Journal of Chinese Medicine Therapeutic Effect and Mechanism of Acupuncture in Autoimmune Diseases Jing Wang, Fangyi Zhu, Wei Huang, Zhengyi Chen, Ping Zhao, Yanting Lei, et al.
Review Article Inflammatory Bowel Disease Multiple Sclerosis Rheumatoid Arthritis
The methodology of the study involved a comprehensive review of how acupuncture, a form of traditional Chinese medicine, may be employed as a treatment method for autoimmune diseases such as multiple sclerosis, rheumatoid arthritis, and inflammatory bowel disease. The research was based on existing knowledge and accumulating data, investigating the role of acupuncture in regulating immune responses during these conditions.
The discussion of the results revealed that acupuncture showed promise in managing these diseases. It was noted that the positive outcomes observed might be linked to the potential of acupuncture to regulate abnormal immune responses which are characteristic of autoimmune diseases. Despite the fact that the precise mechanism through which this achieved is not fully understood, the findings indicate a promising alternative method of managing autoimmune conditions.
Consuming 2-3 cups of coffee daily can help prevent cardiovascular disease and drinking at least 3 cups of green tea has similar benefits.
2022 Trends in Cardiovascular Medicine Coffee and tea on cardiovascular disease (CVD) prevention Chieng D, Kistler PM
Review Article Cardiovascular Disease Coffee Green Tea
In this review, researchers examined the effects of habitual coffee and tea consumption on cardiovascular disease (CVD) prevention. Specifically, they studied the association between 2-3 cups of coffee or tea consumed daily and their beneficial effects on metabolic syndrome, including hypertension and diabetes mellitus, focusing on how these popularly consumed beverages might affect lipid levels.
The analysis of findings drew a correlation between moderate coffee intake and a reduced risk of several cardiovascular conditions, such as coronary heart disease, heart failure, arrhythmia, stroke, and CVD, in addition to lowering mortality from all causes. It was also noted that the benefits extended to higher tea consumption as well, particularly in the case of green tea, where it led to improved survival rates in population-based studies.
Omega-3 fatty acids can help prevent and manage chronic inflammatory diseases, including ulcerative colitis and rheumatoid arthritis, through influencing gut microbiota.
2022 Journal of Medicinal Food Omega-3 Fatty Acids and Balanced Gut Microbiota on Chronic Inflammatory Diseases: A Close Look at Ulcerative Colitis and Rheumatoid Arthritis Pathogenesis Zorgetto-Pinheiro VA, Machate DJ, Figueiredo PS, Marcelino G, Hiane PA, Pott A, et al.
Review Article Gut Microbiota Rheumatoid Arthritis
The study primarily encompasses a review of both experimental and clinical studies on the influence of omega-3 fatty acids on chronic inflammatory conditions, with the attention being specifically focused on those diseases with an autoimmune background. The study highlights the role of these fatty acids in maintaining bodily homeostasis, as well as the enzymatic processes they trigger within the body upon ingestion. Natural sources of omega-3 are also explored, emphasizing the importance of maintaining a healthy and balanced diet.
In their exploration of omega-3's impact on inflammatory conditions, the researchers revisit the pathogenesis of ulcerative colitis and rheumatoid arthritis under the theoretical approach of gut microbiota dysbiosis. This approach emphasizes the role of the gut in maintaining health and identifies how imbalances can contribute to the development and persistence of these conditions. The researchers propose that omega-3 fatty acids are able to prevent and control these conditions, which are significant contributors to global chronic health burden and can lead to severe complications and disabilities if not treated. The potential of omega-3's to prevent severe illness in cases of COVID-19 infection through immune system modulation and control of the inflammatory process is also briefly explored.
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