21 Apr 2017 --- A long-term observational study has shown that drinking one or more artificially sweetened beverages on a daily basis is linked to almost three times the risk of developing stroke or dementia compared to those who drank them less than once a week. However, claims that the observational study includes a number of limitations have come to light, with the ISA stating the study “provides no convincing evidence and no plausible mechanism for a causal relationship between diet drinks’ consumption and health indices, in this case stroke and dementia.”