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Fasting question

Can fasting cause dehydration?

Short answer

Fasting can contribute to dehydration if you drink less or sweat heavily, especially during longer fasts.

Step by step

1
Check the symptom or risk before thinking about streaks.
2
Shorten, pause, or stop the fast when the body gives warning signs.
3
Ask a qualified professional when symptoms repeat or medical conditions are involved.
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Questions

Can fasting cause dehydration?

Fasting can contribute to dehydration if you drink less or sweat heavily, especially during longer fasts.

Safety note: Educational only. People who are pregnant, breastfeeding, under 18, have diabetes, take glucose-affecting medication, have a history of eating disorders, or feel unwell should speak with a qualified clinician before fasting.

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