The oral und systemic health risks of sugar consumption: an umbrella review

The recommendation of free sugar reduction in dental practice is mostly given with regard to caries prevention but has also further health impacts. This umbrella review aimed to comprehensively display the shared health consequences of sugar consumption in both oral and general health.

Within an umbrella review, two independent reviewers identified and analysed systematic reviews examining free sugar consumption alone or as a part of dietary patterns and its association to described diseases in three databases (Epistemonikos, Pubmed, Cochrane Library). Electronic databases were searched up to March 2026, findings were synthesised narratively. Risk of bias was assessed using AMSTAR-2.