Being underweight in males causes excess estrogen levels.
NOT BSTOTAL BS
TOTAL BS — Verdict: False
Verified by Lenz ·
The Short Version
The evidence does not support underweight status as a cause of excess estrogen in males. Medical literature consistently links higher body fat—not low body weight—to higher estradiol because adipose tissue increases aromatization. In men, being underweight is more often associated with lower estrogen levels or broader hormonal suppression, not estrogen excess.
Caveats
The statement reverses the usual direction of association: obesity and higher adiposity are the established settings for elevated estrogen in men.
'Causes' is too strong; most cited human evidence is observational, though the known mechanism still points away from the claim.
Hormone abnormalities in underweight men can occur, but they more commonly involve low sex hormones or hypothalamic-pituitary-gonadal suppression rather than excess estrogen.