Coffee intake one hour prior to phlebotomy produces no clinically significant changes in routine biochemical test results.

Introduction: Although current guidelines recommend not drinking coffee prior to phlebotomy, our hypothesis is that drinking coffee does not affect the clinical interpretation of biochemical and haematological test results. Materials and methods: Twenty-seven volunteers were studied in basal state (T0) and 1h after (T1) drinking coffee. Routine haematological (Sysmex-XN1000 analyser) and biochemistry parameters (Vitros 4600 analyser) were studied. Results were compared using the Wilcoxon test (P < 0.05). A clinical change was considered when mean percent difference (MD%) was higher than the reference change value (RCV). Results: Coffee intake produced statistically, but not clinically, significant: i) increases in haemoglobin (P = 0.009), mean cell haemoglobin concentration (P = 0.044), neutrophils (P = 0.001), albumin (P = 0.001), total protein (P = 0.000), cholesterol (P = 0.025), high density lipoprotein cholesterol (P = 0.007), uric acid (P = 0.011), calcium (P = 0.001), potassium (P = 0.010), aspartate aminotransferase (P = 0.001), amylase (P = 0.026), and lactate dehydrogenase (P = 0.001), and ii) decreases in mean cell volume (P = 0.002), red cell distribution width (P = 0.001), eosinophils (P = 0.002), and lymphocytes (P = 0.001), creatinine (P = 0.001), total bilirubin (P = 0.012), phosphorus (P = 0.001), magnesium (P = 0.007), and chloride (P = 0.001). Conclusion: Drinking a cup of coffee 1 hour prior to phlebotomy produces no clinically significant changes in routine biochemical and haematological test results.

Efecto anticariogénico del café / Coffee Cariogenic Effects

El café es una bebida que cuando se consume solo, sin azúcar y de forma natural es muy rica en beneficios y propiedades protectoras, preventivas, curativas y medicinales. Se estima que al menos el 30% de la población mundial consume una vez al día una taza de café y en Cuba es una de las más comúnmente consumidas. Además de la cafeína y otros múltiples componentes, el café es abundante en compuestos fenólicos y melanoidinas, de efectos beneficiosos para la salud bucal y general de la población; sin embargo, el consumo de café se asocia tradicionalmente a un hábito que no beneficia la salud, pero motivados por esa interrogante se hizo una revisión de la literatura más reciente digital e impresa, de 28 referencias indizadas en las bases de datos disponibles, con el objetivo de valorar los beneficios asociados a la salud bucal, con especial énfasis sobre la caries dental.

Coffee is a beverage that when is consumed alone, without sugar, is a natural beverage rich in benefits and protective, preventive, curative and medicinal properties. It is estimated that at least 30% of the world population consumes a cup of coffee once a day and, in Cuba it is considered one of the most commonly consumed. In addition to caffeine and other multicomponent, coffee is rich in phenolic compounds and melanoidins, beneficial effects for oral and overall health of the population; however, coffee consumption has traditionally been associated with a habit that does not benefit health, but motivated by that question was a review of the latest digital and printed literature 28 references indexed in the databases available at our fingertips to try to take part on the benefits associated with oral health with special emphasis on dental caries.

Association of moderate coffee intake with self-reported diabetes among urban Brazilians.

Coffee has been associated with reductions in the risk of non-communicable chronic diseases (NCCD), including diabetes mellitus. Because differences in food habits are recognizable modifying factors in the epidemiology of diabetes, we studied the association of coffee consumption with type-2 diabetes in a sample of the adult population of the Federal District, Brazil. This cross-sectional study was conducted by telephone interview (n = 1,440). A multivariate analysis was run controlling for socio-behavioural variables, obesity and family antecedents of NCCD. A hierarchical linear regression model and a Poisson regression were used to verify association of type-2 diabetes and coffee intake. The independent variables which remained in the final model, following the hierarchical inclusion levels, were: first level-age and marital status; second level-diabetes and dyslipidaemias in antecedents; third level-cigarette smoking, supplement intake, body mass index; and fourth level-coffee intake (≤100 mL/d, 101 to 400 mL/day, and >400 mL/day). After adjusting hierarchically for the confounding variables, consumers of 100 to 400 mL of coffee/day had a 2.7% higher (p = 0.04) prevalence of not having diabetes than those who drank less than 100 mL of coffee/day. Compared to coffee intake of ≤100 mL/day, adults consuming >400 mL of coffee/day showed no statistically significant difference in the prevalence of diabetes. Thus, moderate coffee intake is favourably associated with self-reported type-2 diabetes in the studied population. This is the first study to show a relationship between coffee drinking and diabetes in a Brazilian population.