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What are the symptoms of fasting?

Diana Meeks
Diana Meeks on behalf of Sigma Nursing
Family Practitioner

The chief symptom of fasting is hunger. Individuals fasting may feel hungry, slightly light-headed, or irritable. Additionally, individuals who are fasting may feel very sleepy and sluggish from the lack of energy and nutrients usually derived from food. After two to four days the feelings of hunger usually pass, but you may still feel tired and light-headed. Any weight loss fasting regimen should be closely monitored by a doctor, if undertaken at all.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.