Research from the Friedman School of Nutrition Science and Policy reveals the health impacts of consuming sugar-sweetened beverages.
Anew study from researchers at the Gerald J. and Dorothy R. Friedman School of Nutrition Science and Policy at Tufts University, which published in Nature Medicine on January 6, estimates that 2.2 million new cases of type 2 diabetes and 1.2 million new cases of cardiovascular disease occur each year globally due to consumption of sugar-sweetened beverages.
In developing countries, the case count is particularly sobering. In Sub-Saharan Africa, the study found that sugar-sweetened beverages contributed to more than 21% of all new diabetes cases. In Latin America and the Caribbean, they contributed to nearly 24% of new diabetes cases and more than 11% of new cases of cardiovascular disease.
Colombia, Mexico, and South Africa are countries that have been particularly hard hit. More than 48% of all new diabetes cases in Colombia were attributable to consumption of sugary drinks. Nearly one third of all new diabetes cases in Mexico were linked to sugary drink consumption. In South Africa, 27.6% of new diabetes cases and 14.6% of cardiovascular disease cases were attributable to sugary drink consumption.
Sugary beverages are rapidly digested, causing a spike in blood sugar levels with little nutritional value. Regular consumption over time leads to weight gain, insulin resistance, and a host of metabolic issues tied to type 2 diabetes and heart disease, two of the world’s leading causes of death.
“Sugar-sweetened beverages are heavily marketed and sold in low- and middle-income nations. Not only are these communities consuming harmful products, but they are also often less well equipped to deal with the long-term health consequences,” says Dariush Mozaffarian, senior author on the paper and director of the Food is Medicine Institute at the Friedman School.
As countries develop and incomes rise, sugary drinks become more accessible and desirable, the authors say. Men are more likely than women to suffer the consequences of sugary drink consumption, as are younger adults compared to their older counterparts, the researchers say.
“We need urgent, evidence-based interventions to curb consumption of sugar-sweetened beverages globally, before even more lives are shortened by their effects on diabetes and heart disease,” says Laura Lara-Castor, NG24, first author on the paper who earned her Ph.D. at the Friedman School and is now at the University of Washington.
The study’s authors call for a multi-pronged approach, including public health campaigns, regulation of sugary drink advertising, and taxes on sugar-sweetened beverages. Some countries have already taken steps in this direction. Mexico, which has one of the highest per capita rates of sugary drink consumption in the world, introduced a tax on the beverages in 2014. Early evidence suggests that the tax has been effective in reducing consumption, particularly among lower-income individuals.
“Much more needs to be done, especially in countries in Latin America and Africa where consumption is high and the health consequence severe,” says Mozaffarian, who is also Jean Mayer Professor of Nutrition at the Friedman School. “As a species, we need to address sugar-sweetened beverage consumption.”
Citation: Research reported in this article was supported by the Gates Foundation, the American Heart Association, and the National Council for Science and Technology in Mexico. Complete information on authors, methodology, limitations, and conflicts of interest is available in the published paper.
Important Notice: This article was originally published at https://now.tufts.edu by Julie Rafferty where all credits are due.
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