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Is Artificial sweeteners safe in pregnancy?
Generally safe
Most approved sweeteners are safe in normal amounts.
What the evidence says
Artificial sweeteners approved for use in the UK — including aspartame, sucralose, stevia, and saccharin — are considered safe in normal amounts during pregnancy. The exception is cyclamate (banned in some countries) and any unregulated "natural" sweeteners. Most UK food labels will only show approved sweeteners.
Why this matters
Approved sweeteners have been tested for pregnancy safety at typical intake levels.
Source:UK Food Standards Agency, NHS guidance
Last reviewed:April 2026
Please note — This is general guidance based on NHS advice as of April 2026. It is not medical advice. For advice on your specific pregnancy, please speak to your midwife or GP.
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