Black Cohosh

Native Americans valued Black Cohosh for its benefits in many conditions ranging from gynaecological problems to rattlesnake bites. Some American physicians used Black Cohosh for problems such as fever, menstrual cramps, arthritis and insomnia. Recent scientific investigation has upheld the use of black cohosh in treating both dysmenorrhoea and menopausal symptoms.
Black Cohosh is one of the main herbs recommended in Germany for menopause, PMS and secondary amenorrhoea. As a woman approaches menopause, the signals between the ovaries and the pituitary gland diminishes, slowing down oestrogen production and increasing lutenising hormone (LH) secretions. This hormonal shift results in many of the unpleasant symptoms such as hot flushes, depression, joint pain, nervousness etc. Clinical studies from Germany have demonstrated that an extract of Black Cohosh decreases lutenising hormone (LH) secretions in menopausal women. Hot flushes seem to be the most physical evidence of these hormonal changes. The isoflavone, Formononetin, is a key constituent in the herb that has been shown in studies to bind to oestrogen receptor sites. Another phytochemical in black cohosh, cimicifugoside, is believed to affect the hypothalamus-pituitary system. Research results indicate that black cohosh is a suitable natural alternative/adjunct to conventional menopause remedies, with improvements being noted in both physical and psychological symptoms.
A recent study suggests Black Cohosh may protect against osteoporosis. It is likely that the isoflavone content along with other phytochemical interaction assist with hormonal balance. In addition, best results are likely to be achieved through increasing exercise levels and improvements in the diet e.g. more soya, fruits, vegetables, water, EFAs and reductions in caffeine, sugar and acid forming foods.
There have been many positive reports from Europe regarding the use of black cohosh for PMS, mostly due to its effects as a hormone balancer. In many cases of PMS the combination of Black Cohosh with Chasteberry (Agnus Castus) often results in greater improvements. Painful menstruation (dysmenorrhoea) and uterine spasms may also be relieved by the use of Black Cohosh.
Research has demonstrated that extracts of Black Cohosh exert anti-arthritic and anti-inflammatory effects helping to fight pain. This additional effect is often helpful in resolving many symptoms in female hormonal disorders.
Caution: Black cohosh has two main sets of components; various isoflavones and salicylic acid. The isoflavones mimic female hormones especially oestrogen, and the salicylic acid is very similar to aspirin. Accordingly, if you are on oestrogen-blockers (such as tamoxifen) or blood-thinning drugs then even more caution than usual in the use of black cohosh should be exercised.