Insights & Discussion
Tea and coffee possess health promoting properties and can effectively prevent and treat metabolic disorders, including obesity, through the suppression of fat storage.
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.
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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 Tea
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.
Avocado consumption correlates with a wider variety of healthier food choices, offering potential benefits for weight control strategies.
2023 PLOS One Identifying usual food choices with avocados in a clinical trial cohort of overweight and obese adults in Australia Guan VX, Neale EP, Probst YC
Clinical Study Obesity
The study created a comprehensive database of avocado-containing foods and drinks based on the AUSNUT 2011-13 food composition structure. The data pulled from four food-based clinical trials consisted of the usual food intake information from overweight and obese volunteers. The Apriori algorithm of association rules was employed as a two-step descriptive methodology to identify the associations between avocado consumption and choices of various foods at each mealtime using a nested hierarchical food group classification scheme.
The findings revealed 34 separate avocado and avocado-inclusive foods and beverages. Avocado intake was prevalent within the studied cohort, with more than half consuming avocados regularly. Avocados were invariably associated with other food groups in main meal occasions, and during breakfast, lunch, and dinner, 68 food items containing avocados were identified for avocado consumers. This avocado-specific database offers insights into the variety of foods and beverages that incorporate avocados, reflecting broad food choices among regular avocado consumers.
Carrots, rich in carotenoids, flavonoids, and vitamins, have numerous health benefits including antioxidants, immune enhancement, and anti-cancer properties.
2022 International Journal of Innovative Research in Engineering & Management An Analysis of Health Benefits of Carrot Varshney K, Mishra K
Review Article Health Benefits
The paper provides an insightful review of carrots and their biochemical properties and wide-ranging health benefits. It presents carrots as a tuber crop rich in elements like carotenoids, vitamins, and soluble fiber, which contribute to their wellness properties. The consumption of carrots is increasing owing to their recognized value as a natural source of antioxidants with anti-cancer properties.
The review also discusses the various uses of carrots and its by-products, carrot pomace, in food processing to boost the nutritional content of various products. The carrots are used in diverse culinary preparations from salads & curries to nutritionally rich processed goods like juices, dry powder, candy, pickle, and gazrailla. Furthermore, carrot pomace which is abundant in beta-carotene is used to improve products such as bakery goods and also to create a range of useful products.
Green tea supplementation can significantly reduce body weight in women with polycystic ovary syndrome, hence potentially beneficial in its clinical management.
2022 Nutrition Research Green tea promotes weight loss in women with polycystic ovary syndrome: Systematic review and meta-analysis Colonetti L, Grande AJ, Toreti IR, Ceretta LB, da Rosa MI, Colonetti T
Meta-Analysis Body Weight Green Tea Obesity
The research carried out was a systematic review of randomized controlled trials that focused on women with polycystic ovary syndrome, examining the effects of green tea supplementation versus a placebo. Relevant studies were sourced from electronic databases such as MEDLINE via PubMed, EMBASE via Elsevier, Cochrane Library, LILACS via BVS, and Web of Science using specific terms related to the illness and green tea. Criteria for the evaluation included effects on body weight, fasting insulin, body mass index, body fat percentage, daily caloric intake, waist and hip circumference, and the waist/hip ratio.
Among the studies considered, there were a total of 169 women, with 85 allocated to the green tea group and 84 to the placebo group. It became apparent that there was a significant reduction in body weight for the group that received green tea supplementation. This leans towards the potential of green tea to be beneficial in the management of this syndrome.
Green tea extract could be considered a potential agent to attenuate PCOS complications mainly due to its effect on weight loss and glycemic levels.
2021 Reproductive Biology and Endocrinology A comprehensive insight into effects of green tea extract in polycystic ovary syndrome: a systematic review Maleki V, Taheri E, Varshosaz P, Tabrizi FPF, Moludi J, Jafari-Vayghan H, et al.
Systematic Review Obesity
Current evidence indicates that green tea extract (GTE) supplementation has potential beneficial effects on PCOS. Of 314 articles found in the search, four human studies and four animal studies were included. All studies in humans showed the effects of GTE on weight loss. GTE's effect on decreasing testosterone levels in humans and LH levels in animals were also reported. In addition, increases in FSH and progesterone levels in animal models were observed. Although GTE improved fasting blood sugar and insulin levels, the effect of GTE on inflammatory parameters, such as TNF-alpha and IL-6 and antioxidant status, was limited to animal studies.
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