Dietary and Lifestyle Management of Functional Hypothalamic Amenorrhea: A Comprehensive Review.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing existing literature without systematic review methodology
PubMed 39275282 · doi:10.3390/nu16172967
What was done
Review of published literature to formulate dietary and lifestyle management recommendations for restoring menstrual function in women with functional hypothalamic amenorrhea.
What was found
Physicians recommend an energy availability threshold of at least 30 kcal/kg fat-free mass per day to prevent and treat functional hypothalamic amenorrhea, as lower availability impairs luteinizing hormone pulsatility. Regular meals supplying glucose are recommended to support luteinizing hormone pulses and normal triiodothyronine (T3) and cortisol concentrations. Restoring menses may require achieving a body fat percentage above 22 percent, with each one kilogram increase in body fat mass reported to increase the likelihood of menstruation by 8 percent. Recommendations also include decreasing exercise intensity or volume rather than stopping completely, ensuring micronutrient adequacy, reducing stress, and incorporating cognitive-behavioral therapy.
Why it matters
Synthesizes practical nutritional and body composition targets to guide clinical management for restoring ovulatory function in energy-deficient women.
Limits
The abstract describes a narrative review without reporting systematic search methods, study inclusion criteria, or risk-of-bias evaluations. Sample sizes and designs of the primary studies generating the numerical estimates are not reported in the abstract.
Cited by
- supports Women have approximately 10% to 13% essential body fat, and dropping below this range causes significant health complications.