Weight far from the balance zone
Metabolism, adipose tissue
🟢 A link with fertility is documented by numerous, converging human studies, endorsed by health authorities.
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In brief
Weight and fertility: this page reviews Weight far from the balance zone (Metabolism, adipose tissue) — documented mechanism, everyday exposure situations and possible alternatives. Level of evidence: Established.
- Where it's found
- Significant overweight as well as marked thinness, rapid and recent weight gain or loss.
- Suspected mechanism
- Adipose tissue produces estrogens; in excess as in deficiency, it unbalances the cycle and lowers testosterone.
- Suggested alternative
- A moderate, sustained change (5 to 10%) already improves cycles. Very restrictive diets are counterproductive.
- Source
- ESHRE (European Society of Human Reproduction and Embryology); HAS (French health authority), obesity and fertility.
Frequently asked questions
Weight far from the balance zone: how is it linked to infertility?
Adipose tissue produces estrogens; in excess as in deficiency, it unbalances the cycle and lowers testosterone.
Where is Weight far from the balance zone found in everyday life?
Significant overweight as well as marked thinness, rapid and recent weight gain or loss.
How can exposure to Weight far from the balance zone be reduced?
A moderate, sustained change (5 to 10%) already improves cycles. Very restrictive diets are counterproductive.
What is the level of evidence for Weight far from the balance zone?
Established. A link with fertility is documented by numerous, converging human studies, endorsed by health authorities.
Map your everyday exposures in about ten minutes.
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Related factors
Including a factor does not mean it causes infertility: it is simply worth monitoring, depending on its level of evidence.
Content last updated: September 14, 2026