Mixed

Daily consumption of diet soda is associated with a significantly increased risk of incident type 2 diabetes (67% greater relative risk) and metabolic syndrome (36% greater relative risk) compared to non-consumption, independent of baseline adiposity measures.

If you drink diet soda daily, be aware that observational data links this habit to a higher risk of developing type 2 diabetes and metabolic syndrome, even after accounting for body weight. While this doesn't prove diet soda causes diabetes, it suggests that relying on it as a 'free' substitute for sugary drinks may not offer the metabolic protection assumed. Consider monitoring your overall dietary patterns and blood glucose levels.