The risk of overall mortality and death associated with cancer and cardiovascular diseases was lower among people who consumed moderate amounts of unsweetened coffee or a drink with one spoon of sugar. The effect of drinking coffee with artificial sweeteners has not been identified.
Drinking moderate amounts of unsweetened coffee reduces the risk of overall mortality and death from cancer and cardiovascular diseases over seven years, a study by scientists from the Southern Medical University of China showed. The results were published in the journal Annals of Internal Medicine.
Drinking 1.5-2.5 cups of unsweetened coffee per day reduced the risk of overall mortality by 16% compared with those who did not drink coffee. The same amount of drink with one spoon of sugar reduced the likelihood of death by 31%. Drinking 2.5–3.5 cups of unsweetened and sweet coffee reduced the likelihood of death by 29 and 28%, respectively. Similar figures were obtained when assessing mortality associated with cancer and cardiovascular diseases.
The effect of coffee with added artificial sweeteners on mortality could not be determined.
The researchers studied data from 171 thousand people from the UK Biobank database. The average age was 55.6 years. All participants completed detailed dietary questionnaires throughout the day. The analysis took into account demographic indicators, lifestyle, and diet. The average follow-up time was seven years.
During this period, there were 3,177 deaths, including 1,725 deaths from cancer and 628 from cardiovascular diseases. About 76% of participants drank coffee. Unsweetened drink was preferred by 55.4% of respondents. About 14.3% drank coffee with one spoon of sugar, and 6.1% of participants used artificial sweeteners.
Drinking from 1.5 to 3.5 cups of coffee per day was considered moderate.