Sweetened beverage consumption and risk of cardiovascular mortality: A systematic review and meta-analysis

Background and aims: Several studies have reported the association of sweetened beverages (SB) with cardiovascular disease. However, the relationship between SB and cardiovascular mortality has not been clearly established. This systematic review and meta-analysis investigated the association between SB consumption and cardiovascular mortality. Methods: PubMed/MEDLINE, Web of Science, and Embase were systematically searched up to July 31, 2021, for prospective cohort studies investigating this association in adults. Pooled relative risks (RRs) and 95% confidence intervals (CIs) were used to assess the strength of association between SB: sugarsweetened beverages (SSB)/artificial-sweetened beverages (ASB) exposure and cardiovascular mortality. Results: A total of eight cohort studies comprising 1.2 million participants exposed to SB, reported 15,831 (1.2%) cases of cardiovascular mortality with a median follow-up of 12.2 years. Consuming at least one glass (250 ml) of SB per day (RR: 1.06; 95% CI: 1.00-1.12, P < 0.001) or >2 glasses per day (RR: 1.24; 95% CI: 1.16-1.31, P < 0.001) was significantly associated with increased risk of cardiovascular mortality. SSB and ASB intake of >2 glasses per day increased the risk of cardiovascular mortality by 21% (RR:1.21, 95% CI: 1.09-1.33, P < 0.001) and 33% (RR: 1.33, 95% CI: 1.12-1.55, P < 0.001), respectively. Conclusions: Our findings reveal that high SSB and ASB consumption are associated with an increased risk of cardiovascular mortality. Policymakers and public health practitioners should work on multisectoral strategies to reduce the consumption of sweetened beverages around the world and among all population groups.