Although you probably do not pour your morning cup for long -term health services, coffee consumption has been linked to a lower risk of mortality. In a new observation study, researchers from Gerald J. and Dorothy R. Friedman School of Nutrition Science and Policy from Tufts University have found that the association between coffee consumption and changes in mortality risk with the amount of sweeteners and saturated fats added to the drink.
The study, published online in The Journal of Nutritionnoted that the consumption of 1-2 cups of coffee coffee per day was linked to a lower risk of death of all causes and death by cardiovascular disease. Black coffee and coffee with low levels of added sugar and saturated fats have been associated with a risk of mortality in all causes lower by 14% compared to no coffee consumption. The same link was not observed for coffee with high quantities of added sugar and saturated fats.
“Coffee is among the most consumed drinks in the world, and with almost half of American adults reporting a business consumption per day, it is important for us to know what it could mean for health,” said Fang Fang Zhang, principal of the study and Neely family teacher at the Friedman school. “The benefits for coffee health can be attributable to its bioactive compounds, but our results suggest that adding sugar and saturated fat can reduce the advantages of mortality.”
The study analyzed the data of nine consecutive cycles of the National Health and Nutrition Examination Survey (Nhanes) from 1999 to 2018, linked to the mortality data of the national death index. The study included a national sample at the national level of 46,000 adults aged 20 and over who finished valid 24 -hour food reminders of the first day. The consumption of coffee has been classified by type (cavity or decaffeinated), in sugar and saturated fats. Mortality results included all causes, cancer and cardiovascular disease. The low-added sugar (granulated sugar, honey and syrup) was defined as less than 5% of the daily value, or 2.5 grams per cup of 8 ounces or about half a teaspoon of sugar. The low saturated fats (milk, cream and half and a half) were defined as 5% of the daily value, or 1 gram per cup of 8 ounces or the equivalent of 5 tablespoons of 2% milk, 1 tablespoon of light cream or 1 tablespoon of half and half.
In the study, the consumption of at least one cup per day was associated with a risk of mortality all causes of 16%. At 2-3 cups per day, the link increased to 17%. Consumption beyond three cups per day was not associated with additional reductions, and the link between coffee and a lower risk of death by cardiovascular disease has weakened when coffee consumption was greater than three cups per day. No significant association has been observed between coffee consumption and cancer mortality.
“Few studies have examined how coffee additives could have an impact on the link between coffee consumption and the risk of mortality, and our study is among the first to quantify the amount of sweetener and saturated fats,” said the first author Bingjie Zhou, a recent doctorate. Graduated from the Epidemiology and Science of Nutrition Data Program at the Friedman School. “Our results align with food directives for Americans who recommend limiting added sugar and saturated fats.”
The limits of the study include the fact that self -depressed recall data is subject to a measurement error due to daily variations in food intake. The absence of significant associations between decaffeinated coffee and mortality, all causes could be due to low consumption among the population studied.
The additional authors are Yongyi Pan and Lu Wang, both from the Friedman school, and Mengyuan Ruan, a graduate of the Friedman school.
The study was supported by the National Institute of the National Institutes of Health on the disparities in health and health of minorities as part of the R01MD01501 award number. Complete information on the methodology is available in the published document. Content is the sole responsibility of the authors and does not necessarily represent the official opinions of the National Institutes of Health.