Intermittent Fasting
Also known as: Time-restricted eating, IF, 16:8 fasting, 5:2 diet
A dietary pattern alternating between periods of eating and fasting. Common protocols include 16:8 (16 hours fasting, 8-hour eating window) and 5:2 (two days per week at 500–600 calories). Used for weight management, metabolic health, and insulin sensitivity. Evidence in perimenopausal women is mixed; some practitioners advise caution regarding cortisol and HPA axis effects.
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Community Experiences
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Research Context
Research context compiled from published sources
How does Intermittent Fasting work?
Extended fasting periods reduce insulin levels, promoting fat oxidation and improving insulin sensitivity. Activates autophagy (cellular repair processes) after approximately 12–16 hours of fasting. May improve metabolic flexibility and reduce inflammatory markers. However, prolonged fasting can increase cortisol, which may be counterproductive in women with HPA axis dysregulation.
Research Depth
Unknown
Long-Term Evidence
Unknown
Reported Contraindicated Populations
Published Dose Ranges
Dose ranges from published research. Individual dosing should be determined with your healthcare provider based on your specific circumstances.
Factual research context from published sources — not a safety assessment or recommendation. Research classifications may change as new data emerges.
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