Adherence

Observational studies show a positive association between NNS consumption and weight gain or obesity incidence, suggesting a complex relationship where NNS use may be a marker for existing weight issues rather than a cause.

While some long-term studies link diet drink consumption to weight gain, this is likely because people who are already gaining weight switch to diet drinks. If you are trying to lose weight, swapping sugary drinks for diet drinks is still a valid strategy to reduce calories, but you must be aware that you might be using them to justify other poor food choices.