Coffee consumption lowers the risk of premature death, a recent study published on November 16 in the journal Circulation has revealed.
Experts from Harvard T.H. Chan School of Public Health reviewed data pertaining to 74,890 women surveyed in the Nurses’ Health Study (NHS), as well as 93,054 women included in the NHS2.
An analysis was conducted also across 40,557 male participants, who had been part of the Health Professionals Follow-up Study.
The patients’ eating habits as well as several health indicators had been monitored once every four years, for a period of more than 30 years.
By the time the trials had ended, around 32,000 of the subjects had died. The purpose of this new research was to see if a link would be identified between premature mortality and each participant’s daily intake of caffeinated and decaffeinated coffee.
Overall, it was discovered that those who had drunk between 1 and 5 cups of coffee per day faced a lower risk of dying early as a result of cardiovascular disease, neurological disorders (such as Parkinson’s disease), type 2 diabetes, and suicide.
Experts noticed that people who had made it a daily habit to drink between 1 and 3 cups of coffee had diminished their probability of dying early by around 5 to 9%. Similarly, those who preferred to have between 3 and 5 cups of coffee had a 7% lower mortality rate in comparison with those who didn’t favor this type of beverage.
After researchers focused solely on non-smokers, a connection between coffee and lower death rates became even more easily discernible.
Drinking one or two cups of coffee daily reduced the chances of premature death by 6 to 8%, while opting for 5 cups of coffee reduced the risk by 12%.
The lowest likelihood, corresponding to a 15% drop in mortality, was encountered among participants who drank between 3 and 5 cups of regular or decaf coffee on a daily basis.
Based on these findings, researchers are now of the opinion that they have provided conclusive evidence of the positive impact that moderate coffee consumption has on physical health.
This is actually in accordance with the 2015 Dietary Guidelines Advisory Report, which also specifies that coffee can be drunk on a regular basis, as part of a healthy daily routine, given that it’s rich in potent antioxidants and riboflavin (vitamin B2).
Prior research papers had warned that this indulging in this habit might heighten the risk of insomnia or anxiety, and should be avoided during early pregnancy.
Others had focused on its positive effects, such as lowered insulin resistance and inflammation, claiming that coffee intake could be beneficial against Alzheimer’s disease and type 2 diabetes, and that it can also ward off depression.
According to Ming Ding, lead study author and Harvard doctoral student, given that the sample size of this new analysis has been so large, the accuracy of the results is very high.
The only limitation is that the research was observational, depending solely on self-reported food diaries. As a result, further trials should be conducted, in order to test these results even more thoroughly.
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