Research

Energy balance

In children, consuming non-sugar sweeteners is associated with a smaller increase in body mass index (BMI) z-score compared to consuming sugar, but there is no significant difference in body weight.

For children, switching from sugar-sweetened drinks to those with non-sugar sweeteners may help prevent a faster rise in BMI z-score compared to drinking sugary drinks. However, this does not necessarily translate to a difference in actual body weight. It is a modest benefit in a specific metric.

ModerateQualifiesMEDIUM confidence
In children, a smaller increase in body mass index z score was observed with NSS intake compared with sugar intake (−0.15, −0.17 to −0.12; two, n=528, moderate certainty of evidence), but no significant differences were observed in body weight (−0.60 kg, −1.33 to 0.14; two, n=467, low certainty of evidence)
Ingrid Toews et al. · BMJ · 2019

Why this rating

Moderate certainty for BMI z-score, low for body weight.

Source

Association between intake of non-sugar sweeteners and health outcomes: systematic review and meta-analyses of randomised and non-randomised controlled trials and observational studies

Ingrid Toews et al. · BMJ · 2019

DOI 10.1136/bmj.k4718

Meta-analysis · 56 studiesCited 269×
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DOI resolved against Crossref · corpus check 2026-06-10

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