10 Frequently Asked Questions About Intermittent Fasting

3. Who Should Not Do IF

Those with uncontrollable diabetes should not do intermittent fasting. Fasting causes hypoglycemia which means dizziness, lightheadedness, and confusion. There is evidence that IF interferes with heart disease medications, but more study is needed to know for sure, says the Mayo Clinic.

Those with bulemia often binge eat following fasting. Alternatively, skipping breakfast has been linked to obesity. Those who are underweight, children not 18, and pregnant women should not do IF due to their increased need for caloric intake.

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IF generally means when a person isn’t eating, nor is he drinking. This leads to dehydration, which can have serious to deadly consequences. Drink up to three liters of water per day to avoid these consequences.