Coffee and green tea consumption is associated with insulin resistance in Japanese adults

Pham, Ngoc Minh; Nanri, Akiko; Kochi, Takeshi; Kuwahara, Keisuke; Tsuruoka, Hiroko; Kurotani, Kayo; Akter, Shamima; Kabe, Isamu; Sato, Masao; Hayabuchi, Hitomi; Mizoue, Tetsuya

doi:10.1016/j.metabol.2013.11.008

Cited by 55 publications

(43 citation statements)

References 50 publications

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“…These results are exciting and need confirmation from additional studies. On the other hand, two recent cross-sectional studies in Japan did not find a preventive effect of green tea consumption against MetS [46,47], which further support the idea that more studies on this topic are needed.…”

Section: Human Studies On Weight Reduction and Mitigation Of Metsmentioning

confidence: 83%

Mechanisms of body weight reduction and metabolic syndrome alleviation by tea

Yang

Zhang

et al. 2015

Molecular Nutrition Food Res

319

309

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Tea, a popular beverage made from leaves of the plant Camellia sinensis, has been shown to reduce body weight, alleviate metabolic syndrome, and prevent diabetes and cardiovascular diseases in animal models and humans. Such beneficial effects have generally been observed in most human studies when the level of tea consumption was 3 to 4 cups (600–900 mg tea catechins) or more per day. Green tea is more effective than black tea. In spite of numerous studies, the fundamental mechanisms for these actions still remain unclear. From a review of the literature, we propose that the two major mechanisms are: 1) decreasing absorption of lipids and proteins by tea constituents in the intestine, thus reducing calorie intake; and 2) activating AMPK by tea polyphenols that are bioavailable in the liver, skeletal muscle, and adipose tissues. The relative importance of these two mechanisms depends on the types of tea and diet consumed by individuals. The activated AMPK would decrease gluconeogenesis and fatty acid synthesis and increase catabolism, leading to body weight reduction and MetS alleviation. Other mechanisms and the health relevance of these beneficial effects of tea consumption remain to be further investigated.

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Section: Human Studies On Weight Reduction and Mitigation Of Metsmentioning

confidence: 83%

Mechanisms of body weight reduction and metabolic syndrome alleviation by tea

Yang

Zhang

et al. 2015

Molecular Nutrition Food Res

319

309

View full text Add to dashboard Cite

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“…Besides, a low-fat diet alone also resulted in distinct improvement in insulin sensitivity in humans (24)(25)(26). Inverse associations have also been reported between coffee consumption and fasting insulin and HOMA-IR (27)(28)(29). Both low fat and high coffee consumption have been related to the alleviation of systemic inflammation (30,31) and encouraging fat oxidation (32), suggesting that interactions between genetic variants of coffee consumption and dietary fat intake might be through these shared pathways.…”

Section: Discussionmentioning

confidence: 98%

Genetic variation of habitual coffee consumption and glycemic changes in response to weight-loss diet intervention: the Preventing Overweight Using Novel Dietary Strategies (POUNDS LOST) trial

Han

Sun

et al. 2017

The American Journal of Clinical Nutrition

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Background: Coffee consumption has been associated with glucose metabolism and risk of type 2 diabetes. Objective: We examined whether the genetic variation determining habitual coffee consumption affected glycemic changes in response to weight-loss dietary intervention. Design: A genetic risk score (GRS) was calculated based on 8 habitual coffee consumption-associated single nucleotide polymorphisms. We used general linear models to test changes in glycemic traits in groups randomly assigned to high-and low-fat diets according to tertiles of the GRS. Results: We observed significant interactions between the GRS and low compared with high dietary fat intake on 6-mo changes in fasting insulin and homeostasis model assessment of insulin resistance (HOMA-IR) (P-interaction = 0.023 and 0.022, respectively), adjusting for age, sex, race, physical activity, smoking, alcohol, seasonal variation, and baseline values of the respective outcomes. Participants with a higher GRS of habitual coffee consumption showed a greater reduction in fasting insulin and a marginally greater decrease in HOMA-IR in the low-fat diet intervention group. Conclusions: Our data suggest that participants with genetically determined high coffee consumption may benefit more by eating a low-fat diet in improving fasting insulin and HOMA-IR in a short term. This trial was registered at clinicaltrials.gov as NCT00072995 and NCT03258203.Am J Clin Nutr 2017;106:1321-6.

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“…Considering these pharmacological benefits of coffee, studies have been conducted to investigate the association between coffee consumption and several clinical conditions. The results of these studies suggest that habitual coffee consumption is associated with lower prevalence of diabetes or pre-diabetes,5) insulin resistance,6) stroke,7) Parkinson's disease,8) and cardiovascular disease 9). There is also evidence that coffee consumption is associated with decreased risks for some types of cancer 10)…”

Section: Introductionmentioning

confidence: 99%

Association of Coffee Consumption with Sarcopenia in Korean Elderly Men: Analysis Using the Korea National Health and Nutrition Examination Survey, 2008–2011

et al. 2017

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BackgroundSarcopenia is an age-related loss of muscle mass and strength. Coffee has antioxidant and anti-inflammatory properties that have been shown to be inversely related to the mechanism of sarcopenia. While there have been some studies on the effect of coffee on sarcopenia in animals, studies on the topic in humans are rare. Therefore, we investigated this relationship in elderly Korean men.MethodsThe cross-sectional data were derived from the 2008–2011 Korea National Health and Nutrition Examination Survey. After applying the exclusion criteria, the study sample consisted of 1,781 men who were at least 60 years of age. Study participants were identified as having sarcopenia if their appendicular skeletal muscle mass divided by height squared was less than two standard deviations below the gender-specific mean of this value for young adults. Daily coffee consumption amounts were categorized as <1 cup, 1 cup, 2 cups, and ≥3 cups.ResultsCompared to the group of individuals who drank less than one cup of coffee a day, people who consumed at least 3 cups (adjusted odds ratio, 0.43; 95% confidence interval, 0.20 to 0.94) showed significantly decreased sarcopenia; however, the decrease was not significant when the daily coffee consumption was 1 or 2 cups. In multivariate logistic regression models, significant associations were observed between sarcopenia and coffee consumption (P for trend=0.039).ConclusionThe results of this study suggest that consuming at least 3 cups of coffee per day was associated with a lower prevalence of sarcopenia in elderly Korean elderly men.

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Coffee and green tea consumption is associated with insulin resistance in Japanese adults

Cited by 55 publications

References 50 publications

Mechanisms of body weight reduction and metabolic syndrome alleviation by tea

Mechanisms of body weight reduction and metabolic syndrome alleviation by tea

Genetic variation of habitual coffee consumption and glycemic changes in response to weight-loss diet intervention: the Preventing Overweight Using Novel Dietary Strategies (POUNDS LOST) trial

Association of Coffee Consumption with Sarcopenia in Korean Elderly Men: Analysis Using the Korea National Health and Nutrition Examination Survey, 2008–2011

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