The effect of estrogen on males

Written by s.e. brinamon
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Excess oestrogen coupled with low testosterone in males, called oestrogen dominance, can cause breast growth and weight gain. Transgender males achieve a feminised appearance by taking oestrogen supplements, but some men unknowingly become oestrogen dominant through diet and everyday products.

Positive Effects

The positive effects of oestrogen on males include less chance of acne, heart attack and balding. Oestrogen also improves short-term memory and fertility.

Negative Effects

Some of the negative effects of oestrogen on males include a decrease in sexual interest and facial hair growth, an increased chance of blood clots and liver problems and unwanted feminisation. High oestrogen levels in men are also linked to prostate cancer.

Oestrogen Sources

Foods such as soy, pumpkin, yams and fennel contain phytoestrogens that mimic the effects of oestrogen in the body. Many meat and dairy products contain artificial oestrogen. Parabens, common in soaps and shampoos, are also phytoestrogens.


While testosterone is the primary male hormone, men also produce small amounts of oestrogen. Oestrogen in males is necessary to regulate fluid re-absorption and aid in sperm development.


Males who are oestrogen dominant should avoid oestrogenic foods and products. Natural progesterone creams regulate oestrogen levels and help protect the prostate.

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