Those who consumed more than one sugary drink per month but less than two a day seemed to experience a dose effect: the more they drank, the higher the risk. The association weakened but persisted as researchers adjusted their lifestyle habits, including dietary factors and physical activity, demographics and family history of type 2 diabetes.
"Previous studies have shown strong and consistent associations between consumption of sweetened drinks and alcohol, weight gain, type 2 diabetes, and other cardiometabolic disorders such as heart disease and stroke," said senior study author Vasanti Malik, a scientific scientist and lecturer at the Department of Nutrition of Harvard TH Chan School of Public Health. The next step, Malik explained, was to investigate how sugary drinks are associated with the risk of premature death.
The researchers used data from 37,71
The main cause of premature deaths in the new research was cardiovascular disease, followed by cancer, especially of the colon and breast, according to the study.
Overall, it was found that the consumption of sugary drinks increased the risk of premature death from cardiovascular disease by 31% and cancer by 18%, when the group that drank more than two a day was compared with those who less than one had per month.
Researchers also looked at the effects of artificially sweetened drinks, considered by many to be a safer alternative to sugary drinks.
Replacing a sugary drink daily with an artificially sweetened drink reduces the risk of premature death, but consuming four or more artificially sweetened drinks increases the risk of premature death from women with cardiovascular disease. The same effect was not observed in men and not for the risk of dying from cancer.
Both studies Yasmin Mossavar-Rahmani, associate professor in the Department of Epidemiology and Population Health at the Albert Einstein College of Medicine, author of the study of last month.
Exactly what is different in women increases the link between consuming artificially sweetened drinks and the risk of premature death, requires further research, Mossavar-Rahmani said.
Because they are observations, the new study can not pinpoint cause and effect, Malik said.
Robert Rankin, President of the Calorie Control Council, an organization that advocates The low-calorie and low-calorie food and beverage industry warns against this and other observational studies to draw.
"It is likely that the subjects already had a higher risk for these diseases and opted for low-calorie, sweetened beverages to control their calorie and sugar intake because these products have proven to be safe and beneficial to individuals who manage their weight and blood sugar levels, "he said in a statement.
William Dermody Jr., a spokesman for the American Beverage Association, said in a statement, "Like all drinks made in our industry, soft drinks are safe as part of a balanced diet."
"The sugar used in our drinks is the same as sugar used in other foods, we do not believe that anyone should consume too much sugar, so we are working to reduce the amount of sugar that is used People across the country are drinking. "[L] Calorie sweetener sweeteners have been repeatedly confirmed as safe by regulators around the world," he added.
Viewing previous research on the effects of sugary drinks on weight gain, Type 2 diabetes, Malik said in heart disease and stroke that her team's new findings provide further evidence that consumers should restrict their consumption.