Is intermittent fasting suitable for me, and when can it be unsafe?
Intermittent fasting may help some adults structure eating and lose weight, but it is not suitable for everyone or guaranteed to work better. Diabetes requires a medical plan; pregnancy, breastfeeding and a history of eating disorders are important reasons to avoid it.
Details
Timing is only one factor
Results depend on food quality, intake, activity and adherence. Some studies have found benefits from time-restricted eating, but that does not make every schedule safe or superior for everyone. Choose a sustainable pattern that does not trigger compensatory overeating.
If you take diabetes treatment
Insulin and some tablets can cause low glucose during fasting. Stopping treatment can instead cause high glucose and dehydration. Agree beforehand on monitoring, medicine timing and when to break the fast. Never copy another person’s doses or delay treating hypoglycaemia to preserve a fasting window.
Before trying it
Seek advice for chronic illness or medicines that need food. Fasting is not a default weight-management plan for children or adolescents. Stop and seek assessment for severe dizziness, fainting or deterioration rather than extending the restriction.
Related reading: What is a ketogenic diet, and what precautions matter with diabetes?.