The Claim
Low muscle mass does not impair estrogen production.
Available evidence supports the practical conclusion that low muscle mass is not known to meaningfully reduce systemic estrogen production. Ovaries and adipose tissue are much more important estrogen sources, and research chiefly shows low estrogen contributing to muscle loss. Direct studies have not established that muscle loss has absolutely no effect, so the categorical wording is stronger than the evidence.
+ 11 more sources — see the full list on Lenz
Claim:
Women with excessive muscle mass have reduced estrogen levels.
MOSTLY BS
Claim:
Low muscle mass causes excessive aromatase activity.
TOTAL BS
Claim:
Excessive muscle mass in men causes estrogen deficiency.
TOTAL BS
Claim:
In men, having low muscle mass causes estrogen levels to become abnormally high.
TOTAL BS
Claim:
Having greater muscle mass makes it easier for the body to eliminate estrogen.
TOTAL BS
Claim:
Women with insufficient body fat have reduced estrogen levels.
NOT BS