Body immunity also depends on iron levels as it dictates the haemoglobin levels. The iron stored in the body is in the form of ferritin that circulates in the blood. There is difference in iron stores in men and women with men having around 1000 mg of stores iron and women having 300 mg.
In a fascinating study, scientists administered estrogen alone, bioidentical progesterone alone, estrogen plus bioidentical progesterone, or placebo to 40 women prior to surgery to remove a breast lump. The hormones were applied topically to the breast for about 12 days before surgery.
BHRT is a marketing term not recognized by FDA. Sellers of compounded bio-identical hormones often claim that their products are identical to hormones made by the body and that these all-natural pills, creams, lotions, and gels are without the risks of drugs approved by FDA for menopausal hormone therapy (MHT).