Is there a natural treatment for gynecomastia?

No. There is no natural treatment other than avoiding drugs of abuse or certain medications. Discuss your prescriptions with your doctor.
Nothing known. Unfortunately there are no known natural cures for gynecomastia other than perhaps avoiding natural estrogenic products.
No. Treatment is either surgery (preferred treatment) or anti-estrogen drugs, which are not natural (not preferred treatment).
Not really. Avoid estrogen products including 'natural ' products that may have an estrogen effect .