Global study ties sugar-sweetened beverages to 3.3 million new cardiometabolic cases annually
2025 study finds sugar-sweetened beverages cause 3.3 million new diabetes and heart disease cases annually worldwide, urging taxes and public-health measures.
A 2025 global analysis estimates that sugar-sweetened beverages are linked to roughly 3.3 million new cases of type 2 diabetes and cardiovascular disease each year, with a substantial share leading to premature death. The study, led by researchers at Tufts University’s Food is Medicine Institute and based on decades of survey and disease-burden data, highlights widening impacts in low- and middle-income countries. Authors call for shifts toward unsweetened drinks and public-health interventions to curb rising harms tied to sugary drinks.
Study quantifies global health toll
Researchers combined consumption data from hundreds of population surveys with national disease statistics to model the health burden attributable to sugar-sweetened beverages. Their estimates attribute about 2.2 million new cases of type 2 diabetes and 1.2 million new cases of heart disease each year to these drinks. The analysis also indicates that roughly one in ten of the resulting cases result in death, underscoring the public-health implications beyond chronic illness.
The team adjusted for other known risk factors to isolate the contribution of sugar-sweetened beverages where possible, and used large, multi-country datasets spanning several decades. The approach aimed to capture both direct metabolic effects and population-level consumption patterns, giving policy makers a clearer picture of potential gains from reducing intake.
Regional disparities and national hotspots
The burden of disease is unevenly distributed, with low- and middle-income regions experiencing disproportionate impacts from sugar-sweetened beverages. In parts of Sub-Saharan Africa the proportion of diabetes cases linked to these drinks is markedly higher than global averages. Latin America and the Caribbean also face elevated rates, with some countries reporting double-digit shares of new diabetes and cardiovascular cases tied to sugary-drink consumption.
Specific countries highlighted in the study include Colombia, Mexico and South Africa, where rapid market growth and shifting diets have coincided with rising cardiometabolic disease. By contrast, consumption trends in North America and much of Europe have declined, even as global totals remain driven upward by expanding markets elsewhere.
Who is most affected
Analysis within the study reveals that men, younger adults and people with higher education levels show relatively larger proportions of new cardiometabolic cases linked to sugar-sweetened beverages. These subgroup patterns reflect complex interactions of marketing, workplace and social behaviors, and local beverage affordability. Experts note that targeted outreach and tailored interventions may be required to reach groups that are more likely to consume sugary drinks frequently.
Public health scholars caution that consumption patterns evolve quickly as beverage companies expand distribution and marketing, so demographic risk profiles may shift unless policy and education efforts keep pace.
How sugar-sweetened beverages drive disease
Nutrition and epidemiology experts say several mechanisms explain why sugar-sweetened beverages pose outsized cardiometabolic risk compared with solid foods that carry similar calories. Liquid calories are consumed rapidly and are less satiating, often raising total daily caloric intake without reducing other food consumption. Repeated spikes in blood glucose and insulin from high sugar intake can promote insulin resistance, weight gain—particularly abdominal fat—and metabolic dysfunction that increase risk for type 2 diabetes and heart disease.
Beyond calories, routine consumption of sugar-sweetened beverages tends to displace more nutritious options such as milk, whole fruit and fiber-rich foods, worsening overall diet quality. Some observational studies have also linked frequent sugary-drink intake to other health problems, prompting researchers to seek further evidence on long-term cognitive and respiratory outcomes.
Industry strategies and shifting sales
The study’s authors and independent observers point to beverage industry expansion as a key driver of rising consumption in emerging markets. While sales have slowed or fallen in parts of Europe and North America, multinational producers have increased investment and marketing in countries such as Mexico, Brazil, China and India. This expansion—combined with urbanization and changing retail environments—has accelerated access to sugar-sweetened beverages in communities that previously consumed them less frequently.
Experts warn that aggressive promotion, affordable pricing and sponsorship of local events can entrench consumption habits quickly, making later public-health interventions more difficult and costlier.
Policy tools and public-health responses
Researchers recommend a mix of policy measures to reduce sugar-sweetened beverage intake and associated disease burden, including substantial excise taxes, warning labels and restrictions on purchases in public institutions. Modeling in the study suggests that price increases of at least 20 percent are needed to meaningfully cut consumption, and some jurisdictions have adopted far higher levies. Revenue from taxes can be redirected to health campaigns, improved access to safe drinking water, and programs that encourage unsweetened beverage choices.
Experts also advocate for stronger limits on marketing to children, clear front-of-package warnings about health risks, and procurement rules that keep sugary drinks out of schools, hospitals and government facilities. Those measures, combined with community education and affordable alternatives, are viewed as the most effective path to lowering the global toll attributed to sugary drinks.
The new analysis adds to a growing body of evidence linking sugar-sweetened beverages to cardiometabolic harm and highlights geographic and demographic pockets where interventions could yield the greatest benefit. Policymakers and health systems face urgent choices on taxation, labeling and access to healthier drinks as beverage markets continue to evolve.
